Sentinel Rock

Sentinel Rock
"Sentinel Rock, Yosemite, California," by Carleton E. Watkins
Highest point
Elevation 7,038 ft (2,145 m) [1]
Coordinates 37°43′44″N 119°35′40″W / 37.7288151°N 119.594331°W / 37.7288151; -119.594331Coordinates: 37°43′44″N 119°35′40″W / 37.7288151°N 119.594331°W / 37.7288151; -119.594331 [2]
Geography
Location Yosemite National Park, Mariposa County, California, U.S.
Parent range Sierra Nevada
Topo map USGS Half Dome
Geology
Age of rock Cretaceous
Mountain type Granite
Climbing
First ascent June 30 - July 4, 1950, by Allen Steck and John Salathé[3]
Easiest route Circular Staircase (class 5.8)[4]

Sentinel Rock is a granitic peak in Yosemite National Park, California, United States. It towers over Yosemite Valley, opposite Yosemite Falls.[5] Sentinel Rock lies 0.7 miles (1.1 km) northwest of Sentinel Dome.

How it was formed

Sentinel Rock formed when masses of rock split off Yosemite Valley's south-side cliff, along steep joints trending nearly east-west. This formed the near-vertical north face of Sentinel Rock.[6]

Climbing

The most famous climbing route is the Steck-Salathé route, which is rated a class 5.10b G A0.[3]

Climber Derek Hersey died while attempting to free solo climb Sentinel Rock in 1993.[7]

References

  1. ↑ "Natural Resource Statistics". Yosemite National Park. National Park Service. Retrieved 2009-01-28.
  2. ↑ "Sentinel Rock". Geographic Names Information System. United States Geological Survey. Retrieved 2009-01-28.
  3. 1 2 "Steck-Salathe". rockclimbing.com. Retrieved 2014-01-20.
  4. ↑ "Circular Staircase, Sentinel Rock 5.8". SuperTopo.com. Retrieved 2016-03-27.
  5. ↑ "Rock Formations in Yosemite". Yosemite National Park. National Park Service. Retrieved 2007-08-14.
  6. ↑ USGS Geology and Geophysics: USGS Geology and Geophysics, accessdate: March 20, 2017
  7. ↑ Roberts, Paul (1994-11-01). "Risk". Psychology Today. Retrieved 2011-07-27.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.