Sentinel Rock

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For the granite dome near Glacier Point, Yosemite National Park, see Sentinel Dome.
Sentinel Rock
Sentinel Rock by Tom Frost.jpg
A photo of Sentinel Rock in Yosemite Valley,
taken by Tom Frost
Highest point
Elevation7,038 ft (2,145 m)[1]
Coordinates37°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
LocationYosemite National Park
Mariposa County, California, U.S.
Parent rangeSierra Nevada
Topo mapUSGS Half Dome
Geology
Age of rockCretaceous
Type of rockGranite
Climbing
First ascentJune 30 - July 4, 1950
by Allen Steck and John Salathé[3]
Easiest routeCircular 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]

Gallery[]

  • Northwest aspect

  • Yosemite National Park - Sentinel Rock.jpg

  • Sentinel Rock (right) in Yosemite Valley. (camera pointed east)

  • Sentinel Rock postcard, circa 1901

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. ^ a b "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.

External links[]

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