Mount Sinyella
{{Short description|Landform in the Grand Canyon, Arizona}}
{{Infobox mountain
| name = Mount Sinyella
| photo = Mt. Sinyella.jpg
| photo_caption = West aspect
| label = Mount Sinyella
| label_position = bottom
| elevation_ft = 5441
| elevation_ref = {{cite peakbagger|id=3911|name=Mount Sinyella, Arizona|accessdate=2021-01-23}}
| prominence_ft = 1193
| isolation_mi = 5.54
| isolation_ref = {{cite web |url = https://listsofjohn.com/peak/74751 |title = Mount Sinyella – 5,441' AZ |website = Lists of John |access-date = 2021-01-23 }}
| parent_peak =
| country = United States
| state = Arizona
| region = Coconino
| region_type = County
| part_type = Protected area | part = Grand Canyon National Park
| range = Coconino Plateau
Colorado Plateau
| map = Arizona#USA
| map_size = 230
| map_caption = Location in Arizona
| coordinates = {{coord|36.2996302|N|112.7059934|W|type:mountain_region:US-AZ_scale:100000|format=dms|display=inline,title}}
| coordinates_ref = {{cite gnis |id=11368 |name=Mount Sinyella |accessdate=2021-01-23}}
| topo = USGS Havasu Falls
| age = Permian
| first_ascent = 1960
| easiest_route = {{YDS|5.1}} climbing
}}
Mount Sinyella is a {{convert|5,441|ft|meter|adj=mid|-elevation|abbr=off|sp=us}} summit located in the western end of Grand Canyon National Park, in Coconino County of northern Arizona, in the Southwestern United States. It is situated {{convert|1.7|mi|km}} north-northwest of Uqualla Point, and {{convert|4|mi|km|spell=in}} southeast of Boysag Point, at the mouth of Havasu Canyon. As the high point of Sinyella Mesa, it towers 1,200 feet above the mesa, and 3,600 feet above the nearby Colorado River which is 1.5 mile to the northwest.
This isolated butte is an erosional remnant composed of Permian Kaibab Limestone and Coconino Sandstone.[http://publications.americanalpineclub.org/articles/12196223101/North-America-United-States-Arizona-Mount-Sinyala North America, United States, Arizona, Mount Sinyala, Americanalpineclub.org] This sandstone, which is the third-youngest stratum in the Grand Canyon, was deposited 265 million years ago as sand dunes. According to the Köppen climate classification system, Mount Sinyella is located in a Cold semi-arid climate zone.{{cite journal | author = Peel, M. C. |author2=Finlayson, B. L. |author3=McMahon, T. A. | year = 2007 | title = Updated world map of the Köppen−Geiger climate classification | journal = Hydrol. Earth Syst. Sci. | volume = 11 | issn = 1027-5606}}
History
This butte's name was adopted as Mount Sinyala in 1932 by the U.S. Board on Geographic Names. In 1988, the board officially revised it to the present spelling, Sinyella. It was named by the American conservationist Charles Sheldon for Chief Sinyella (1853–1923), a prominent Havasupai chief who Sheldon hired as a guide to show him the canyon in 1912.United States Board on Geographic Names, Decisions on Geographic Names in the United States, Decision List No. 8804, 1988, page 2. "It is interesting to go with him [Sinyala], he knows every foot of the country" noted Sheldon.Karl Jacoby, Crimes Against Nature, 2001, University of California Press, page 267. The local native inhabitants called it "Week-eel-eela" which is said to mean "stick sitting up", also their general term for any butte.Gregory McNamee, Grand Canyon Place Names, 1997, Mountaineers Publisher, {{ISBN|9780898865332}}, page 102.
The first ascent of the summit was made April 11, 1960, by Don Myers, Mike Sherrick, Jim Wilkerson, and Bill Amborn via the north face. The second ascent was made by Dave Ganci and Jerry Robertson, May 3, 1969.[http://grandcanyonhistory.org/uploads/3/4/4/2/34422134/tidrick_ganci_and_robertson_oral_history_transcript_june_12_2015.pdf Grandcanyonhistory.org]
Gallery
File:02079 Grand Canyon Boysag Point (7945848676).jpg|Sinyella Mesa from Boysag Point, with Mt. Sinyella upper left. circa 1951
File:01883 Grand Canyon Havasu Canyon (7945902458).jpg|Southwest aspect, circa 1949
File:02093 Grand Canyon Boysag Point (7945847738).jpg|Mt. Sinyella centered, Sinyella Canyon to left
File:02085 Grand Canyon Boysag Point (7945848440).jpg|from Boysag Point, circa 1951
File:Havasu Canyon.jpg
File:Sinyella, Paguekwash Point.jpg|Mount Sinyella (left) and Paguekwash Point (right) from Kanab Point
File:Mt. Sinyella AZ.jpg|Mt. Sinyella, east aspect
See also
References
{{reflist}}
External links
{{commons category|Mount Sinyella}}
- Weather forecast: [https://forecast.weather.gov/MapClick.php?lat=36.2997&lon=-112.706#.YAy9qE-SmUk National Weather Service]
- Mt. Sinyella photo [https://adamschallau.com/photo/grand-canyon-mount-sinyella/ from river level]
- [https://www.howtopronounce.com/mount-sinyella Mount Sinyella pronunciation]
{{Geology of the Grand Canyon area|state=collapsed}}
{{DEFAULTSORT:Sinyella, Mount}}
Category:Landforms of Coconino County, Arizona
Category:Grand Canyon National Park
Category:One-thousanders of the United States
Category:Sandstone formations of the United States