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Thursday, April 23, 2020

Navajo National Monument

From Wikipedia, the free encyclopedi
 
Navajo National Monument
Keet Seel closeup.jpg
Keet Seel cliff dwellings
Map showing the location of Navajo National Monument
Map showing the location of Navajo National Monument
LocationNavajo & Coconino counties, Arizona, USA
Nearest cityKayenta, Arizona
Coordinates36°40′42″N 110°32′27″WCoordinates: 36°40′42″N 110°32′27″W
Area360 acres (150 ha)
CreatedMarch 20, 1909
Visitors61,195 (in 2018)
Governing bodyNational Park Service
WebsiteNavajo National Monument


Navajo National Monument
NRHP reference No.66000176
Added to NRHPOctober 15, 1966

Navajo National Monument is a National Monument located within the northwest portion of the Navajo Nation territory in northern Arizona, which was established to preserve three well-preserved cliff dwellings of the Ancestral Puebloan People: Keet Seel (Broken Pottery) (Kitsʼiil), Betatakin (Ledge House) (Bitátʼahkin), and Inscription House (Tsʼah Biiʼ Kin). The monument is high on the Shonto plateau, overlooking the Tsegi Canyon system, west of Kayenta, Arizona. It features a visitor center with a museum, two short self-guided mesa top trails, two small campgrounds, and a picnic area. Rangers guide visitors on free tours of the Keet Seel and Betatakin cliff dwellings. The Inscription House site, further west, is currently closed to public access.

The Sandal Trail is an accessible self-guided walk that provides views of the spectacular canyonlands and rugged topography near the visitor center. Interpretive signs provide information on local flora and other topics. The 1-mile (1.6 km) round-trip trail ends at an overlook of the Betatakin ruins across the 560-foot-deep (170 m) Betatakin Canyon. The National Monument was listed on the National Register of Historic Places on October 15, 1966.

Keet Seel

Keet Seel or Kiet Siel (Kįtsʼiil), which stands for "broken pottery scattered around" in Navajo, is a well preserved cliff dwelling of the ancient Anasazi (ancestral puebloans) people located in a branch of the Tsegi Canyon in the Kayenta region. The site was first occupied at around 1250, during a time in which a large number of people were believed to be aggregating in sites such as this in this part of the American Southwest. There was a construction boom at Keet Seel between 1272 and 1275, with construction then slowly tapering off and halting completely at 1286. Once construction halted in 1286, there was no evidence of structures being built until its subsequent abandonment some 20 years later. It is believed that, at its peak, up to 150 people inhabited this site at one time. Due to the extremely dry climate and natural overhanging cliff the site's dwellings and artifacts are well preserved. Keet Seel is considered by many archaeological experts to be one of the best preserved larger ruins in the American Southwest.

Betatakin

Betatakin means "House Built on a Ledge" in Navajo. In Hopi, the name of the place is Talastima, or "Place of the Corn Tassel". Betatakin is smaller than nearby Keet Seel, with about 120 rooms at the time of abandonment. However, like Keet Seel, Betatakin was constructed of sandstone, mud mortar, and wood. Today only about 80 rooms remain, due to rock falls inside the alcove. Betatakin only has one kiva, whereas Kiet Siel has several. Betatakin was built in an enormous alcove measuring 452 feet high and 370 feet across between 1267 and 1286 The first excavations occurred in 1909 under Byron Cummings, University of Utah, and continued into the 1950s and 1960s under archaeologists like Jeffery Dean. During its two-decade heyday Dean estimated a maximum population of about 125 people.

Discovery

The site of Keet Seel was known to resident Navajos in the area for decades or longer prior to the first Anglos arriving in 1895 (the Wetherill brothers). Originally part of a ranching family from Colorado, the Wetherills' keen interest in the ancient Anasazi (ancestral puebloans) led them to pursue numerous expeditions into the heart of the Kayenta region, largely uncovering a number of sites that had remained undiscovered to Anglos until then. The Wetherills took many artifacts from the ruins which the Navajos had left untouched for centuries. Richard Wetherill is credited for selecting the term Anasazi, which refers to the ancient people (ancestral puebloans) that inhabited this region and means "Revered Ancestors" in Navajo. It was not until 1909, after Navajo National Monument was created, that John Wetherill, Byron Cummings, and Navajo guide Clatsozen Benully first recorded Betatakin. The Wetherill Brothers made a living from giving guided tours of sites in and around the Tsegi Canyon and Utah. Later in their careers, the Wetherill brothers were largely involved in efforts for the preservation and protection of the sites that made up Navajo National Monument. The artifacts which the Wetherills had removed from the Anasazi sites were sold or shipped to far-flung locations so that today little is known of the artifacts' whereabouts.

Subsistence

The Anasazi (ancestral puebloans) of this area were a sedentary group that largely based their subsistence on agriculture. Their primary crop at the sites within Navajo National Monument was maize, with beans and cucurbits also being incorporated into their diet. While the people of the Tsegi Canyon system relied heavily on agriculture for their food, they also hunted wild game that was indigenous to the area. 

It is thought that these Anasazi people lived in these cave dwellings to optimize the amount of sustainable land to produce crops. By living in these caves, and not on the mesas or the canyon floors, they were able to use this land towards agricultural production to ensure their success in this high elevation, desert environment. The ruins that make up Navajo National Monument were a large number of rooms used for storage, suggesting that at some point their crop production was successful enough to dedicate a significant amount of their living area towards storage purposes.

Dwellings/Architecture

Betatakin ruins in Betatakin Canyon.
 
The structures contained within this cave site were constructed mainly of sandstone blocks plastered together with mud and mortar. In marked contrast to earlier constructions and villages on top of the mesas, the cliff dwelling of Navajo National Monument reflected a region-wide trend towards the aggregation of growing regional populations into close, highly defensible quarters during the mid to late 13th century. 

While much of the construction in this site remains similar to common ancestral Pueblo architectural forms, including such features as Kivas, a circular tower (at Keet Seel), and pit-houses, the limited space that this site presented created a much more densely populated living area. At its peak, Keet Seel had more than 150 rooms and 6 kivas, while Betatakin had about 120 rooms and only one kiva.

Jacal walls were also found to be used at this site. Jacal walls were made from a screen of upright wooden poles plastered together with mud. The dry conditions and protection from the elements at Keet Seel allowed for preservation of these architectural characteristics. 

There were also a number of structures believed to be built at the base of the cliff as well. But due to this area not being protected by the over-hanging cliff wall, its exposure to the elements led to its destruction by erosion. At Keet Seel, archaeological excavations have revealed that there were 25 room clusters beneath the overhanging wall, each that included one common living room, with anywhere from one to four storage rooms surrounding a small courtyard. The layout of these dwellings greatly mirrored that of the Pueblo III structures at Mesa Verde, whereas Betatakin had about 20 room clusters.

Abandonment

Although many archaeologists agree that there is a definitive and sharp exodus from this region in the Southwest, there has been considerable debate on the determining factors that forced people to migrate out of this area. Archaeologists have determined that there was a distinct decrease in the amount of annual precipitation between AD 1276 and 1299, a period of time that is now referred to as the "Great Drought". With the limited amount of rainfall in an already arid environment, there is no doubt that there was a considerable amount of increased stress put on the agricultural systems that these people depended on. 

There is evidence later in the record to suggest the beginning of an episode of deep arroyo cutting, that would have damaged what was left of the usable agricultural land. Increased deposition of sediment onto agricultural lands caused the lowering of the water table, thus making the land inadequate for farming. Regardless of their reasoning, near the end of the thirteenth century it's evident that the Anasazi(ancestral puebloans) people migrated towards places with more stable and abundant water sources, suggesting that the agricultural land in this area had become unsuitable to sustain the population levels that once inhabited this spectacular cave site. 

Hopi legends tell a different tale. According to oral tradition, the area known as Wunuqa (modern day Tsegi Canyon) was abandoned as part of a spiritual quest. In particular, the Snake Clan inhabited the Navajo National Monument ruins, along with the Horn Clan. The Horn Clan forced the Snake Clan out, due to the children of the Snake Clan biting other children and causing death. This may be an allegory for some historical occurrence, in which one group forced another out for a perceived fault or slight.

World Heritage Site

From Wikipedia, the free encyclopedia
 

A World Heritage Site is a landmark or area, selected by the United Nations Educational, Scientific and Cultural Organization (UNESCO) for having cultural, historical, scientific or other form of significance, which is legally protected by international treaties. The sites are judged to be important for the collective and preservative interests of humanity. 

To be selected, a World Heritage Site must be an already-classified landmark, unique in some respect as a geographically and historically identifiable place having special cultural or physical significance (such as an ancient ruin or historical structure, building, city, complex, desert, forest, island, lake, monument, mountain, or wilderness area). It may signify a remarkable accomplishment of humanity, and serve as evidence of our intellectual history on the planet.

The sites are intended for practical conservation for posterity, which otherwise would be subject to risk from human or animal trespassing, unmonitored/uncontrolled/unrestricted access, or threat from local administrative negligence. Sites are demarcated by UNESCO as protected zones. The list is maintained by the international World Heritage Program administered by the UNESCO World Heritage Committee, composed of 21 "states parties" that are elected by their General Assembly.
The programme catalogues, names, and conserves sites of outstanding cultural or natural importance to the common culture and heritage of humanity. Under certain conditions, listed sites can obtain funds from the World Heritage Fund. The programme began with the Convention Concerning the Protection of the World's Cultural and Natural Heritage, which was adopted by the General Conference of UNESCO on 16 November 1972. Since then, 193 state parties have ratified the convention, making it one of the most widely recognised international agreements and the world's most popular cultural programme.

In 1978 the city of Quito in Ecuador earned the distinction of being the first city in the world to be declared a UNESCO World Heritage Site. In the same year, Kraków in Poland was also named a UNESCO World Heritage Site.

As of July 2019, a total of 1,121 World Heritage Sites (869 cultural, 213 natural, and 39 mixed properties) exist across 167 countries. China and Italy, both with 55 sites, have the most of any country, followed by Spain (48), Germany (46), France (45), India (38), and Mexico (35).

History

Convention concerning the Protection of the World's Cultural and Natural Heritage
Signed16 November 1972
LocationParis, France
Effective17 December 1975
Condition20 ratifications
Ratifiers193 (189 UN member states plus the Cook Islands, the Holy See, Niue, and Palestine)
DepositaryDirector-General of the United Nations Educational, Scientific and Cultural Organization
LanguagesArabic, English, French, Russian, and Spanish


In 1954, the government of Egypt decided to build the new Aswan High Dam, whose resulting future reservoir would eventually inundate a large stretch of the Nile valley containing cultural treasures of ancient Egypt and ancient Nubia. In 1959, the governments of Egypt and Sudan requested UNESCO to assist their countries to protect and rescue the endangered monuments and sites. In 1960, the Director-General of UNESCO launched an appeal to the member states for an International Campaign to Save the Monuments of Nubia. This appeal resulted in the excavation and recording of hundreds of sites, the recovery of thousands of objects, as well as the salvage and relocation to higher ground of a number of important temples, the most famous of which are the temple complexes of Abu Simbel and Philae. The campaign, which ended in 1980, was considered a success. As tokens of its gratitude to countries which especially contributed to the campaign's success, Egypt donated four temples: the Temple of Dendur was moved to the Metropolitan Museum of Art in New York City, the Temple of Debod was moved to the Parque del Oeste in Madrid, the Temple of Taffeh was moved to the Rijksmuseum van Oudheden in the Netherlands, and the Temple of Ellesyia to Museo Egizio in Turin.

The project cost $80 million, about $40 million of which was collected from 50 countries. The project's success led to other safeguarding campaigns: saving Venice and its lagoon in Italy, the ruins of Mohenjo-daro in Pakistan, and the Borobodur Temple Compounds in Indonesia. UNESCO then initiated, with the International Council on Monuments and Sites, a draft convention to protect cultural heritage.

Convention and background

The United States initiated the idea of cultural conservation with nature conservation. The White House conference in 1965 called for a "World Heritage Trust" to preserve "the world's superb natural and scenic areas and historic sites for the present and the future of the entire world citizenry". The International Union for Conservation of Nature developed similar proposals in 1968, and they were presented in 1972 to the United Nations Conference on the Human Environment in Stockholm. Under the World Heritage Committee, signatory countries are required to produce and submit periodic data reporting providing the World Heritage Committee with an overview of each participating nation's implementation of the World Heritage Convention and a "snapshot" of current conditions at World Heritage properties. 

Based on the draft convention that UNESCO had initiated, a single text was eventually agreed on by all parties, and the "Convention Concerning the Protection of the World Cultural and Natural Heritage" was adopted by the General Conference of UNESCO on 16 November 1972.

The Convention came into force on 17 December 1975. As of May 2017, it has been ratified by 193 states parties, including 189 UN member states plus 2 UN observer states (the Holy See and the State of Palestine) and 2 states in free association with New Zealand (the Cook Islands and Niue). Only four UN member states have not ratified the Convention: Liechtenstein, Nauru, Somalia and Tuvalu.

The protection of the world heritage should also preserve the particularly sensitive cultural memory, the growing cultural diversity and the economic basis of a state, a municipality or a region. Whereby there is also a connection between cultural user disruption or world heritage and the cause of flight, as President of Blue Shield International Karl von Habsburg-Lorraine explained during an United Nations peacekeeping and UNESCO mission in Lebanon in April 2019: “Cultural assets are part of the identity of the people who live in a certain place. If you destroy their culture, you also destroy their identity. Many people are uprooted, often have no prospects anymore and subsequently flee from their homeland ”.

Nomination process

A country must first list its significant cultural and natural sites; the result is called the Tentative List. A country may not nominate sites that have not been first included on the Tentative List. Next, it can place sites selected from that list into a Nomination File.

The Nomination File is evaluated by the International Council on Monuments and Sites and the World Conservation Union. These bodies then make their recommendations to the World Heritage Committee. The Committee meets once per year to determine whether or not to inscribe each nominated property on the World Heritage List and sometimes defers or refers the decision to request more information from the country which nominated the site. There are ten selection criteria – a site must meet at least one of them to be included on the list.

Selection criteria

Up to 2004, there were six criteria for cultural heritage and four criteria for natural heritage. In 2005, this was modified so that there is now only one set of ten criteria. Nominated sites must be of "outstanding universal value" and meet at least one of the ten criteria. These criteria have been modified or/amended several times since their creation.

Cultural

Site#252: The Taj Mahal, an example of a World Heritage Site.
Site#252: Taj Mahal, an example of a cultural heritage site.
  1. "represents a masterpiece of human creative genius and cultural significance"
  2. "exhibits an important interchange of human values, over a span of time, or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning, or landscape design"
  3. "to bear a unique or at least exceptional testimony to a cultural tradition or to a civilization which is living or which has disappeared"
  4. "is an outstanding example of a type of building, architectural, or technological ensemble or landscape which illustrates a significant stage in human history"
  5. "is an outstanding example of a traditional human settlement, land-use, or sea-use which is representative of a culture, or human interaction with the environment especially when it has become vulnerable under the impact of irreversible change"
  6. "is directly or tangibly associated with events or living traditions, with ideas, or with beliefs, with artistic and literary works of outstanding universal significance"

Natural

Site#156: Serengeti National Park, an example of a natural heritage site.
 
Site#274: Historic Sanctuary of Machu Picchu, an example of a mixed heritage site.
  1. "contains superlative natural phenomena or areas of exceptional natural beauty and esthetic importance"
  2. "is an outstanding example representing major stages of Earth's history, including the record of life, significant on-going geological processes in the development of landforms, or significant geomorphic or physiographic features"
  3. "is an outstanding example representing significant on-going ecological and biological processes in the evolution and development of terrestrial, fresh water, coastal and marine ecosystems, and communities of plants and animals"
  4. "contains the most important and significant natural habitats for in-situ conservation of biological diversity, including those containing threatened species of outstanding universal value from the point of view of science or conservation"

Extensions and other modifications

A country may request to extend or reduce the boundaries, modify the official name, or change the selection criteria of one of its already listed sites. Any proposal for a significant boundary change or to modify the site's selection criteria must be submitted as if it were a new nomination, including first placing it on the Tentative List and then onto the Nomination File.

A request for a minor boundary change, one that does not have a significant impact on the extent of the property or affect its "outstanding universal value", is also evaluated by the advisory bodies before being sent to the Committee. Such proposals can be rejected by either the advisory bodies or the Committee if they judge it to be a significant change instead of a minor one.

Proposals to change a site's official name are sent directly to the Committee.

Endangerment

A site may be added to the List of World Heritage in Danger if there are conditions that threaten the characteristics for which the landmark or area was inscribed on the World Heritage List. Such problems may involve armed conflict and war, natural disasters, pollution, poaching, or uncontrolled urbanization or human development. This danger list is intended to increase international awareness of the threats and to encourage counteractive measures. Threats to a site can be either proven imminent threats or potential dangers that could have adverse effects on a site.

The state of conservation for each site on the danger list is reviewed on a yearly basis, after which the committee may request additional measures, delete the property from the list if the threats have ceased or consider deletion from both the List of World Heritage in Danger and the World Heritage List.

Only two sites have ever been delisted: the Arabian Oryx Sanctuary in Oman and the Dresden Elbe Valley in Germany. The Arabian Oryx Sanctuary was directly delisted in 2007, instead of first being put on the danger list, after the Omani government decided to reduce the protected area's size by 90 percent.[23] The Dresden Elbe Valley was first placed on the danger list in 2006 when the World Heritage Committee decided that plans to construct the Waldschlösschen Bridge would significantly alter the valley's landscape. In response, Dresden City Council attempted to stop the bridge's construction, but after several court decisions allowed the building of the bridge to proceed, the valley was removed from the World Heritage List in 2009.

The first global assessment to quantitatively measure threats to Natural World Heritage sites found that 63 percent of sites have been damaged by increasing human pressures including encroaching roads, agriculture infrastructure and settlements over the last two decades. These activities endanger Natural World Heritage sites and could compromise their unique values. Of the Natural World Heritage sites that contain forest, 91 percent of those experienced some loss since the year 2000. Many Natural World Heritage sites are more threatened than previously thought and require immediate conservation action.

Furthermore, the destruction of cultural assets and identity-establishing sites is one of the primary goals of modern asymmetrical warfare. Therefore, terrorists, rebels and mercenary armies deliberately smash archaeological sites, sacred and secular monuments and loot libraries, archives and museums. The UN, United Nations peacekeeping and UNESCO and in cooperation with Blue Shield International are active in preventing such acts. "No strike lists" are also created to protect cultural assets from air strikes.[27][28][29] But only through cooperation with the locals can the protection of world heritage sites, archaeological finds, exhibits and archaeological sites from destruction, looting and robbery be implemented sustainably. The president of Blue Shield International Karl von Habsburg summed it up with the words: “Without the local community and without the local participants, that would be completely impossible”.

Statistics


The World Heritage Committee has divided the world into five geographic zones which it calls regions: Africa, Arab states, Asia and the Pacific, Europe and North America, and Latin America and the Caribbean.

Russia and the Caucasus states are classified as European, while Mexico and the Caribbean are classified as belonging to the Latin America and Caribbean zone. The UNESCO geographic zones also give greater emphasis on administrative, rather than geographic associations. Hence, Gough Island, located in the South Atlantic, is part of the Europe and North America region because the government of the United Kingdom nominated the site.

The table below includes a breakdown of the sites according to these zones and their classification as of July 2019:

Zone/region Cultural Natural Mixed Total Percentage
Africa 53 38 5 96 8.56%
Arab states 78 5 3 86 7.67%
Asia and the Pacific 189 67 12 268 23.91%
Europe and North America 453 65 11 529 47.19%
Latin America and the Caribbean 96 38 8 141 12.58%
Total 869 213 39 1121 100%

Countries with fifteen or more sites

Countries with fifteen or more World Heritage Sites as of July 2019:
List of World Heritage Sites in SwedenList of World Heritage Sites in PolandList of World Heritage Sites in PortugalList of World Heritage Sites in TurkeyList of World Heritage Sites in GreeceList of World Heritage Sites in CanadaList of World Heritage Sites in AustraliaList of World Heritage Sites in BrazilList of World Heritage Sites in JapanList of World Heritage Sites in the United StatesList of World Heritage Sites in IranList of World Heritage Sites in RussiaList of World Heritage Sites in the United KingdomList of World Heritage Sites in MexicoList of World Heritage Sites in IndiaList of World Heritage Sites in FranceList of World Heritage Sites in GermanyList of World Heritage Sites in SpainList of World Heritage Sites in ItalyList of World Heritage Sites in China

Consequences

Despite the successes of World Heritage listing in promoting conservation, the UNESCO administered project has attracted criticism from some for perceived under-representation of heritage sites outside Europe, disputed decisions on site selection and adverse impact of mass tourism on sites unable to manage rapid growth in visitor numbers.

A sizable lobbying industry has grown around the awards because World Heritage listing has the potential to significantly increase tourism revenue from sites selected. Site listing bids are often lengthy and costly, putting poorer countries at a disadvantage. Eritrea's efforts to promote Asmara is one example.

In 2016, the Australian government was reported to have successfully lobbied for Great Barrier Reef conservation efforts to be removed from a UNESCO report titled 'World Heritage and Tourism in a Changing Climate'. The Australian government's actions were in response to their concern about the negative impact that an 'at risk' label could have on tourism revenue at a previously designated UNESCO World Heritage site.

A number of listed World Heritage locations such as George Town, Penang, and Casco Viejo, Panama, have struggled to strike the balance between the economic benefits of catering to greatly increased visitor numbers and preserving the original culture and local communities that drew the recognition.

Grand Canyon National Park

From Wikipedia, the free encyclopedia

Grand Canyon National Park
IUCN category II (national park)
Dawn on the S rim of the Grand Canyon (8645178272).jpg
Grand Canyon from the South Rim at dawn
Map showing the location of Grand Canyon National Park
Map showing the location of Grand Canyon National Park
Location in the United States
LocationCoconino and Mohave counties, Arizona, United States
Nearest cityFredonia, Arizona (North Rim)
Tusayan, Arizona (South Rim)
Coordinates36°03′19″N 112°07′19″WCoordinates: 36°03′19″N 112°07′19″W[2]
Area1,217,262 acres (4,926.08 km2)
EstablishedFebruary 26, 1919
Visitors6,380,495 (in 2018)
Governing bodyNational Park Service
WebsiteOfficial website 

CriteriaNatural: vii, viii, ix, x
Reference75
Inscription1979 (3rd session)

Grand Canyon National Park, located in northwestern Arizona, is the 15th site in the United States to have been named a national park. The park's central feature is the Grand Canyon, a gorge of the Colorado River, which is often considered one of the Wonders of the World. The park, which covers 1,217,262 acres (1,901.972 sq mi; 4,926.08 km2) of unincorporated area in Coconino and Mohave counties, received more than six million recreational visitors in 2017, which is the second highest count of all American national parks after Great Smoky Mountains National Park. The Grand Canyon was designated a World Heritage Site by UNESCO in 1979. The park celebrated its 100th anniversary on February 26, 2019.

History

1938 poster of the park

"Grand Canyon" was officially designated a national park on February 26, 1919, though the landmark had been well known to Americans for over thirty years prior. In 1903, President Theodore Roosevelt visited the site and said: "The Grand Canyon fills me with awe. It is beyond comparison—beyond description; absolutely unparalleled through-out the wide world... Let this great wonder of nature remain as it now is. Do nothing to mar its grandeur, sublimity and loveliness. You cannot improve on it. But what you can do is to keep it for your children, your children's children, and all who come after you, as the one great sight which every American should see."

Despite Roosevelt's enthusiasm and strong interest in preserving land for public use, the Grand Canyon was not immediately designated as a national park. The first bill to establish Grand Canyon National Park was introduced in 1882 by then-Senator Benjamin Harrison, which would have established Grand Canyon as the third national park in the United States, after Yellowstone and Mackinac. Harrison unsuccessfully reintroduced his bill in 1883 and 1886; after his election to the presidency, he established the Grand Canyon Forest Reserve in 1893. Theodore Roosevelt created the Grand Canyon Game Preserve by proclamation on 28 November 1906, and the Grand Canyon National Monument in 1908. Further Senate bills to establish the site as a national park were introduced and defeated in 1910 and 1911, before the Grand Canyon National Park Act was finally signed by President Woodrow Wilson in 1919. The National Park Service, established in 1916, assumed administration of the park. 

The creation of the park was an early success of the conservation movement. Its national park status may have helped thwart proposals to dam the Colorado River within its boundaries. (Later, the Glen Canyon Dam would be built upriver.) In 1975, the former Marble Canyon National Monument, which followed the Colorado River northeast from the Grand Canyon to Lee's Ferry, was made part of Grand Canyon National Park. In 1979, UNESCO declared the park a World Heritage Site. The 1987 the National Parks Overflights Act found that "Noise associated with aircraft overflights at the Grand Canyon National Park is causing a significant adverse effect on the natural quiet and experience of the park and current aircraft operations at the Grand Canyon National Park have raised serious concerns regarding public safety, including concerns regarding the safety of park users." In 2010, Grand Canyon National Park was honored with its own coin under the America the Beautiful Quarters program.

Geography

Grand Canyon regional map

The Grand Canyon, including its extensive system of tributary canyons, is valued for its combination of size, depth, and exposed layers of colorful rocks dating back to Precambrian times. The canyon itself was created by the incision of the Colorado River and its tributaries after the Colorado Plateau was uplifted, causing the Colorado River system to develop along its present path.

The primary public areas of the park are the South and North Rims, and adjacent areas of the canyon itself. The rest of the park is extremely rugged and remote, although many places are accessible by pack trail and backcountry roads. The South Rim is more accessible than the North Rim, and accounts for 90% of park visitation.

The park headquarters are at Grand Canyon Village, not far from the south entrance to the park, near one of the most popular viewpoints.

South Rim

From Powell Point on the South Rim
 
Most visitors to the park come to the South Rim, arriving on Arizona State Route 64. The highway enters the park through the South Entrance, near Tusayan, Arizona, and heads eastward, leaving the park through the East Entrance. Interstate 40 provides access to the area from the south. From the north, U.S. Route 89 connects Utah, Colorado, and the North Rim to the South Rim. Overall, some 30 miles of the South Rim are accessible by road.

North Rim

Sunset at Cape Royal Point, North Rim
 
The North Rim area of the park located on the Kaibab Plateau and Walhalla Plateau, directly across the Grand Canyon from the principal visitor areas on the South Rim. The North Rim's principal visitor areas are centered around Bright Angel Point. The North Rim is higher in elevation than the South Rim, at over 8,000 feet (2,400 m) of elevation. Because it is so much higher than the South Rim, it is closed from December 1 through May 15 each year, due to the enhanced snowfall at elevation. Visitor services are closed or limited in scope after October 15. Driving time from the South Rim to the North Rim is about 4.5 hours, over 220 miles (350 km). 

Services

Grand Canyon Village is the primary visitor services area in the park. It is a full-service community, including lodging, fuel, food, souvenirs, a hospital, churches, and access to trails and guided walks and talks.

Lodging

Several lodging facilities are available along the South Rim. Hotels and other lodging include: El Tovar, Bright Angel Lodge, Kachina Lodge, Thunderbird Lodge, and Maswik Lodge, all of which are located in the village area, and Phantom Ranch, located on the canyon floor. There is also an RV Park named Trailer Village. All of these facilities are managed by Xanterra Parks & Resorts, while the Yavapai Lodge (also in the village area) is managed by Delaware North.

On the North Rim there is the historic Grand Canyon Lodge managed by Forever Resorts and a campground near the lodge, managed by the national park staff.

Climate

According to the Köppen climate classification system, Grand Canyon National Park has five climate zones; Cold Semi-Arid (BSk), Humid Continental Dry Cool Summer (Dsb), Humid Continental Dry Warm Summer (Dsa), Warm Summer Mediterranean (Csb), and Hot Summer Mediterranean (Csa). The plant hardiness zone at Grand Canyon Visitor Center is 7a with an average annual extreme minimum temperature of 3.3 °F (−15.9 °C).

Climate data for Grand Canyon Visitor Center, Grand Canyon Village, Grand Canyon National Park, Coconino County, AZ (1981 – 2010 averages).
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °F (°C) 46.6
(8.1)
50.0
(10.0)
57.2
(14.0)
65.9
(18.8)
76.2
(24.6)
86.9
(30.5)
90.7
(32.6)
87.1
(30.6)
81.2
(27.3)
69.2
(20.7)
55.2
(12.9)
46.3
(7.9)
67.8
(19.9)
Daily mean °F (°C) 35.6
(2.0)
38.4
(3.6)
44.2
(6.8)
51.1
(10.6)
60.8
(16.0)
70.1
(21.2)
75.4
(24.1)
72.5
(22.5)
66.2
(19.0)
54.9
(12.7)
43.1
(6.2)
35.1
(1.7)
54.0
(12.2)
Average low °F (°C) 24.5
(−4.2)
26.9
(−2.8)
31.1
(−0.5)
36.3
(2.4)
45.3
(7.4)
53.3
(11.8)
60.1
(15.6)
57.9
(14.4)
51.1
(10.6)
40.7
(4.8)
30.9
(−0.6)
24.0
(−4.4)
40.2
(4.6)
Average precipitation inches (mm) 1.42
(36)
1.41
(36)
1.63
(41)
0.94
(24)
0.53
(13)
0.32
(8.1)
1.20
(30)
1.94
(49)
1.18
(30)
1.01
(26)
0.90
(23)
1.17
(30)
13.65
(347)
Average relative humidity (%) 47.1 44.8 38.7 30.4 24.0 19.2 26.2 36.0 31.9 33.2 39.8 46.4 34.8

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average Dew Point °F 17.4 18.8 20.6 21.0 23.8 26.2 38.3 44.0 35.4 26.5 20.3 16.6 25.8
Average Dew Point °C -8.1 -7.3 -6.3 -6.1 -4.6 -3.2 3.5 6.7 1.9 -3.1 -6.5 -8.6 -3.4

Activities

North Rim

From Toroweap Overlook on the North Rim
 
There are few roads on the North Rim; however, there are some notable vehicle accessible lookout points including Point Imperial, Roosevelt Point, and Cape Royal. Mule rides are also available that go to a variety of places, including several thousand feet down into the canyon.

Many visitors to the North Rim choose to make use of the variety of hiking trails including the Widforss Trail, Uncle Jim's Trail, the Transept Trail, and the North Kaibab Trail. The North Kaibab Trail can be followed all the way down to the Colorado River, connecting across the river to the South Kaibab Trail and the Bright Angel Trail, which continue up to the South Rim of the Grand Canyon. 

The Toroweap Overlook is located in the western part of the park on the North Rim. Access is via unpaved roads off Route 389 west of Fredonia, Arizona. The roads lead through Grand Canyon–Parashant National Monument and to the overlook.

South Rim

From Desert View on the South Rim
 
A variety of activities at the South Rim cater to park visitors. A driving tour (35 miles (56 km)) along the South Rim is split into two segments. The western drive to Hermit's Point is 8 miles (13 km) with several overlooks along the way, including Mohave Point, Hopi Point, and the Powell Memorial. From March to December, access to Hermit's Rest is restricted to the free shuttle provided by the Park Service. The eastern portion to Desert View is 25 miles (40 km), and is open to private vehicles year round. 

Walking tours include the Rim Trail, which runs west from the Pipe Creek viewpoint for about 8 miles (13 km) of paved road, followed by 7 miles (11 km) unpaved to Hermit's Rest. Hikes can begin almost anywhere along this trail, and a shuttle can return hikers to their point of origin. Mather Point, the first view most people reach when entering from the South Entrance, is a popular place to begin.
Private canyon flyovers are provided by helicopters and small airplanes out of Las Vegas, Phoenix, and Grand Canyon National Park Airport. Due to a crash in the 1990s, scenic flights are no longer allowed to fly within 1,500 feet (460 m) of the rim within the Grand Canyon National Park. Flights within the canyon are still available outside of park boundaries.

Development

The US government halted development of a 1.6 million acres area including the national park from 1966 to 2009, known as the Bennett Freeze, because of an ownership dispute between Hopi and Navajo.

Grand Canyon Association

The Grand Canyon Association (GCA) is the National Park Service's official nonprofit partner. It raises private funds to benefit Grand Canyon National Park by operating retail shops and visitor centers within the park, and providing educational opportunities about the natural and cultural history of the region. 

A panoramic view from the South Rim

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