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Comb Ridge ( nv, ) is a linear north to south-trending monocline nearly 80 miles long in Southeastern
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
and Northeastern
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
. Its northern end merges with the
Abajo Mountains The Abajo Mountains, sometimes referred to as the Blue Mountains, is a small mountain range west of Monticello, Utah, south of Canyonlands National Park and north of Blanding, Utah. The mountain range is located within the Manti–La Sal National ...
some eleven miles west of Blanding. It extends essentially due south for to the San Juan River. South of the San Juan the ridge turns to the southwest and is more subdued in expression as it extends for an additional to Laguna Creek east of
Kayenta, Arizona Kayenta ( nv, ) is a U.S. town which is part of the Navajo Nation and is in Navajo County, Arizona, United States. Established November 13, 1986, the Kayenta Township is the only "township" existing under the laws of the Navajo Nation, making it ...
.''Geosights, Comb Ridge, San Juan County, Utah,'' May 2012, pp. 9–11
USGS 30x60 quadrangle topographic maps: Blanding, Utah-Colorado; Bluff, Utah-Colorado; Rock Point, Arizona-New Mexico; Kayenta, Arizona It was designated a
National Natural Landmark The National Natural Landmarks (NNL) Program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only national natural areas program that identifies and recognizes the best ...
in 1976 as the only North American location of tritylodont fossils. Parts of the ridge in Utah are protected as part of the
Bears Ears National Monument Bears Ears National Monument is a United States national monument located in San Juan County in southeastern Utah, established by President Barack Obama by presidential proclamation on December 28, 2016. The monument protects of public land su ...
.Obama Designates Two New National Monuments, Protecting 1.65 Million Acres
Davenport, Coral. ''
The New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid ...
'', 28 December 2016


Geology

The geologic formations involved in the east dipping strata of the fold include the
Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ...
aged
Navajo Sandstone The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States.Anonymo ...
,
Kayenta Formation The Kayenta Formation is a geological formation in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. Traditionally has been suggested ...
,
Wingate Sandstone The Wingate Sandstone is a geologic formation in the Glen Canyon Group of the Colorado Plateau province of the United States which crops out in northern Arizona, northwest Colorado, Nevada, and Utah. Geology Wingate Sandstone is particularly ...
,
Chinle Formation The Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, and western Colorado. In Ne ...
,
Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...
Moenkopi Formation The Moenkopi Formation is a geological formation that is spread across the U.S. states of New Mexico, northern Arizona, Nevada, southeastern California, eastern Utah and western Colorado. This unit is considered to be a group in Arizona. Part ...
and
Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...
Organ Rock Formation The Organ Rock Formation or Organ Rock Shale is a formation within the late Pennsylvanian to early Permian Cutler Group and is deposited across southeastern Utah, northwestern New Mexico, and northeastern Arizona. This formation notably outcrops a ...
. The structure is the surface expression of a deep fault along the east margin of the Monument Uplift.


History

Traces of the
Ancestral Puebloan The Ancestral Puebloans, also known as the Anasazi, were an ancient Native American culture that spanned the present-day Four Corners region of the United States, comprising southeastern Utah, northeastern Arizona, northwestern New Mexico, an ...
culture can be found along the southern part of the ridge where it follows
Chinle Wash Chinle Creek is a tributary stream of the San Juan River in Apache County, Arizona and San Juan County, Utah. Its source is at , the confluence of Laguña Creek and the Chinle Wash arroyo. Its name is derived from the Navajo word ''ch'inili' ...
. The Macomb and Hayden expeditions in 1869 and 1874–1876, respectively, were the first to publish maps and descriptions of this feature. The ridge and adjacent Butler Wash were given their current names in 1884, by P. Holmann. Numerous
cliff dwelling In archaeology, cliff dwellings are dwellings formed by using niches or caves in high cliffs, and sometimes with excavation or additions in the way of masonry. Two special types of cliff dwelling are distinguished by archaeologists: the cliff ...
s are found along the ridge. File:Monarch cave ruin.jpg, Monarch Cave Ruin cliff dwelling on Comb Ridge File:Monarch cave ruin close.jpg, Monarch Cave Ruin cliff dwelling on Comb Ridge File:House on Fire Ruin.jpg, House on Fire Ruin near Comb Ridge File:Eternal Procession.jpg, Procession Panel
petroglyph A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions ...


See also

*
Posey War The Posey War was a small, brief conflict with American Indians in Utah. Though it was a minor conflict, it involved a mass exodus of Ute and Paiute native Americans from their land around Bluff, Utah to the deserts of Navajo Mountain. The na ...
*
Trail of the Ancients The Trail of the Ancients is a collection of National Scenic Byways located in the U.S. Four Corners states of Utah, Colorado, and Arizona. These byways comprise: *The Trail of the Ancients National Scenic Byway in San Juan County, Utah; *The ...
* Anasazi State Park Museum *
Pueblo III Era The Pueblo III Period (AD 1150 to AD 1350) was the third period, also called the "Great Pueblo period" when Ancestral Puebloans lived in large cliff-dwelling, multi-storied pueblo, or cliff-side talus house communities. By the end of the period, ...


References


External links


Comb Ridge
National Park Service The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational propertie ...
{{authority control Cliff dwellings National Natural Landmarks in Arizona Landforms of Apache County, Arizona Landforms of Navajo County, Arizona Landforms of San Juan County, Utah Rock formations of Arizona Rock formations of Utah Bears Ears National Monument