O'Neill Butte is a -elevation summit located in the

Grand Canyon The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is long, up to wide and attains a depth of over a mile (). The canyon and adjacent rim are contained within Grand Canyon Nati ...

, in

Coconino County Coconino County is a County (United States), county in the North Central Arizona, North-Central part of the U.S. state of Arizona. Its population was 145,101 at the 2020 United States census, 2020 census. The county seat is Flagstaff, Arizon ...

of northern

Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. It is situated east-northeast of

Grand Canyon Village Grand Canyon Village is a census-designated place (CDP) located on the South Rim of the Grand Canyon, in Coconino County, Arizona, United States. Its population was 2,004 at the 2010 Census. Located in Grand Canyon National Park, it is wholly ...

, northeast of Mather Point, and one mile immediately northwest of Yaki Point. Cedar Ridge connects O'Neill Butte with Yaki Point on the South Rim.

Topographic relief Terrain (), alternatively relief or topographical relief, is the dimension and shape of a given surface of land. In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientati ...

is significant as O'Neill Butte rises above the

Colorado River The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...

in . Access to this prominence is via the

South Kaibab Trail The South Kaibab Trail is a hiking trail in Grand Canyon National Park, located in the United States, U.S. States of the United States, state of Arizona. Unlike the Bright Angel Trail which also begins at the south rim of the Grand Canyon and lea ...

which traverses the east slope of the peak. According to the

Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...

system, O'Neill Butte is located in a

cold semi-arid climate Cold is the presence of low temperature, especially in the atmosphere. In common usage, cold is often a subjective perception. A lower bound to temperature is absolute zero, defined as 0.00K on the Kelvin scale, an absolute thermodynamic ...

zone.

Geology

The summit block of O'Neill Butte is composed of

Permian The Permian ( ) is a geologic period and System (stratigraphy), 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 251.902 Mya. It is the s ...

Esplanade Sandstone The Lower Permian Esplanade Sandstone is a cliff-forming, resistant sandstone, dark red, geologic unit found in the Grand Canyon. The rock unit forms a resistant shelf in the west Grand Canyon, south side of the Colorado River, at the east of th ...

, which is the uppermost member of the

Pennsylvanian Pennsylvanian may refer to: * A person or thing from Pennsylvania * Pennsylvanian (geology) The Pennsylvanian ( , also known as Upper Carboniferous or Late Carboniferous) is, on the International Commission on Stratigraphy, ICS geologic timesc ...

Supai Group The Supai Group is a slope-forming sequence of mixed red beds and limestones that outcrop in the Colorado Plateau. The group was laid down during the Pennsylvanian to Lower Permian. Cliff-forming interbeds of sandstone are noticeable througho ...

. The rest of the Supai Group overlays

Mississippian Mississippian may refer to: * Mississippian (geology), a subperiod of the Carboniferous period in the geologic timescale, roughly 360 to 325 million years ago * Mississippian cultures, a network of precontact cultures across the midwest and Easte ...

Redwall Limestone The Redwall Limestone is an erosion-resistant, Mississippian age, cliff-former, cliff-forming geological formation that forms prominent, red-stained cliffs in the Grand Canyon. these cliffs range in height from to . It is one of the most fossili ...

. The cliff-forming Redwall overlays the

Cambrian The Cambrian ( ) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordov ...

Tonto Group The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a '' Group'', that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon. As currently defined, the T ...

, and below that

Paleoproterozoic The Paleoproterozoic Era (also spelled Palaeoproterozoic) is the first of the three sub-divisions ( eras) of the Proterozoic eon, and also the longest era of the Earth's geological history, spanning from (2.5–1.6 Ga). It is further sub ...

Vishnu Basement Rocks The Vishnu Basement Rocks is the name recommended for all Early Proterozoic crystalline rocks (metamorphic and igneous) exposed in the Grand Canyon region. They form the crystalline basement rocks that underlie the Bass Limestone of the Unkar Gr ...

at river level in Granite Gorge. Precipitation runoff from O'Neill Butte drains north to the Colorado River via Pipe Creek (west aspect) and Cremation Creek (east).

History

This feature is named for William Owen "Buckey" O'Neill (1860–1898), an

Arizona Territory The Territory of Arizona, commonly known as the Arizona Territory, was a territory of the United States that existed from February 24, 1863, until February 14, 1912, when the remaining extent of the territory was admitted to the Union as the ...

politician, who died as a captain of

Theodore Roosevelt Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919), also known as Teddy or T.R., was the 26th president of the United States, serving from 1901 to 1909. Roosevelt previously was involved in New York (state), New York politics, incl ...

Rough Riders The Rough Riders was a nickname given to the 1st United States Volunteer Cavalry, one of three such regiments raised in 1898 for the Spanish–American War and the only one to see combat. The United States Army was small, understaffed, and diso ...

at the

Battle of San Juan Hill The Battle of San Juan Hill (), also known as the Battle for the San Juan Heights, was a major battle of the Spanish–American War fought between an American force under the command of William Rufus Shafter and Joseph Wheeler against a Span ...

. O'Neill did some prospecting in the Grand Canyon in 1890, and also figured prominently in bringing the

railroad Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of ...

to the canyon's South Rim.Randy Moore and Kara Felicia Witt, ''The Grand Canyon: An Encyclopedia of Geography, History, and Culture'', 2018, ABC-CLIO Publisher, pp. 279–280. This landform's toponym was officially adopted in 1906 by the U.S. Board on Geographic Names.

Gallery

File:Grand Canyon, O'Neill Butte.jpg, O'Neill Butte centered with Yaki Point upper right. From northwest. File:Grand Canyon 09 2017 5139.jpg, O'Neill Butte from Yavapai Point File:D3143 Grand Canyon Tonto Trail Scenic (4667241438).jpg, West aspect of O'Neill Butte (upper right) from

Tonto Trail The Tonto Trail is a hiking trail on the South Rim of the Grand Canyon in Grand Canyon National Park, located in the U.S. state of Arizona. Access The Tonto Trail does not terminate at either rim of the Grand Canyon, but begins along the south b ...

File:Grand Canyon 17 (15543616302).jpg File:O'Neill Butte in winter.jpg, O'Neill Butte from Mather Point in winter

References

External links

* Weather forecast
National Weather Service
* O'Neill Butte rock climbing
Mountainproject.com
* Climbing photos
Themtsarecalling.com
{{Geology of the Grand Canyon area, , state=collapsed Grand Canyon Grand Canyon, South Rim Landforms of Coconino County, Arizona Colorado Plateau Grand Canyon National Park One-thousanders of the United States Buttes of Arizona Sandstone formations of the United States

Geology

History

Gallery

See also

References

External links