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'''Mount Lyell''' is the highest point in [[Yosemite National Park]], at {{convert|13120|ft|m}}. It is located at the southeast end of the [[Cathedral Range]], {{convert|1.2|mi|km}} northwest of Rodgers Peak. It is named after [[Charles Lyell]], a well-known 19th century geologist.<ref name="farquhar">{{cite Farquhar |index=L |accessdate=2009-06-22}}</ref> The peak also has the largest [[glacier]]s in Yosemite, [[Lyell Glacier]].
'''Mount Lyell''' is the highest point in [[Yosemite National Park]], at {{convert|13120|ft|m}}. It is located at the southeast end of the [[Cathedral Range]], {{convert|1.2|mi|km}} northwest of Rodgers Peak. It is named after [[Charles Lyell]], a well-known 19th century geologist.<ref name="farquhar">{{cite Farquhar |index=L |accessdate=2009-06-22}}</ref> The peak also has the largest [[glacier]]s in Yosemite, [[Lyell Glacier]].


Mount Lyell divides the [[Tuolumne River]] watershed to the north, the Merced to the west, and the Rush Creek drainage in the Mono Lake Basin to the southeast.
Mount Lyell divides the [[Tuolumne River]] watershed to the north, the [[Merced River|Merced]] to the west, and the Rush Creek drainage in the Mono Lake Basin to the southeast.


==Climbing==
==Climbing==
The most common approach to Mount Lyell is from [[Tuolumne Meadows]] on a highly traveled section of the [[John Muir Trail]]. The round trip is approximately {{convert|25|mi|km}} and involves {{convert|4500|ft|m}} of elevation gain when starting from the Tuolumne Wilderness Office. The hike is easy from Tuolumne Meadows, following the Tuolumne River to the head of the Lyell Canyon, and becomes moderate as it approaches [[Donahue Pass]]. Before reaching Donahue Pass, the route leaves the trail and heads south towards Mount Lyell.
The most common approach to Mount Lyell is from [[Tuolumne Meadows]] on a highly traveled section of the [[John Muir Trail]]. The round trip is approximately {{convert|25|mi|0}} and involves {{convert|4500|ft|m}} of elevation gain when starting from the Tuolumne Wilderness Office. The hike is easy from Tuolumne Meadows, following the Tuolumne River to the head of the Lyell Canyon, and becomes moderate as it approaches [[Donahue Pass]]. Before reaching Donahue Pass, the route leaves the trail and heads south towards Mount Lyell.


Most summit ascents are done either over or around the Lyell Glacier. Seasonal and year to year variations on the glacier make it necessary to assess current conditions before choosing a route to the summit. The NW Ridge, from the saddle between Mount Lyell and nearby Mount Maclure, offers class 2-3 climbing with high snow levels on the glacier. Low snow levels increases the grade to class 3-4 on the exposed granite ledges, in which cases it may be easier to ascend the glacier more directly to the summit. The grade of the East Arete likewise increases with low snow conditions, going from class 3 to class 4 (the looseness of the rock underlying the glacier on the East Arete makes it somewhat dangerous in low snow conditions). Other routes exist on the south and west sides, but of greater difficulty and longer approaches.
Most summit ascents are done either over or around the Lyell Glacier. Seasonal and year to year variations on the glacier make it necessary to assess current conditions before choosing a route to the summit. The NW Ridge, from the saddle between Mount Lyell and nearby [[Mount Maclure]], offers class 2-3 climbing with high snow levels on the glacier. Low snow levels increases the grade to class 3-4 on the exposed granite ledges, in which cases it may be easier to ascend the glacier more directly to the summit. The grade of the East Arete likewise increases with low snow conditions, going from class 3 to class 4 (the looseness of the rock underlying the glacier on the East Arete makes it somewhat dangerous in low snow conditions). Other routes exist on the south and west sides, but of greater difficulty and longer approaches.


== See also ==
== See also ==

Revision as of 17:53, 18 January 2014

This article is about the mountain in California, For other geographic features with this name, see Mount Lyell
Mount Lyell
Mount Lyell, June 2005
Highest point
Elevation13,120 ft (4,000 m) NAVD 88[1]
Prominence1,927 ft (587 m)[2]
Parent peakMount Ritter[3]
ListingSPS Emblem peak[4]
Geography
Map
LocationMadera and Tuolumne counties, California, U.S.
RegionUS-CA
Parent rangeSierra Nevada, Cathedral Range
Topo mapUSGS Mount Lyell
Climbing
First ascentAugust 29, 1871 by John Boies Tileston[5]
Easiest routeScramble with exposure, class 3[4]

Mount Lyell is the highest point in Yosemite National Park, at 13,120 feet (4,000 m). It is located at the southeast end of the Cathedral Range, 1.2 miles (1.9 km) northwest of Rodgers Peak. It is named after Charles Lyell, a well-known 19th century geologist.[6] The peak also has the largest glaciers in Yosemite, Lyell Glacier.

Mount Lyell divides the Tuolumne River watershed to the north, the Merced to the west, and the Rush Creek drainage in the Mono Lake Basin to the southeast.

Climbing

The most common approach to Mount Lyell is from Tuolumne Meadows on a highly traveled section of the John Muir Trail. The round trip is approximately 25 miles (40 km) and involves 4,500 feet (1,400 m) of elevation gain when starting from the Tuolumne Wilderness Office. The hike is easy from Tuolumne Meadows, following the Tuolumne River to the head of the Lyell Canyon, and becomes moderate as it approaches Donahue Pass. Before reaching Donahue Pass, the route leaves the trail and heads south towards Mount Lyell.

Most summit ascents are done either over or around the Lyell Glacier. Seasonal and year to year variations on the glacier make it necessary to assess current conditions before choosing a route to the summit. The NW Ridge, from the saddle between Mount Lyell and nearby Mount Maclure, offers class 2-3 climbing with high snow levels on the glacier. Low snow levels increases the grade to class 3-4 on the exposed granite ledges, in which cases it may be easier to ascend the glacier more directly to the summit. The grade of the East Arete likewise increases with low snow conditions, going from class 3 to class 4 (the looseness of the rock underlying the glacier on the East Arete makes it somewhat dangerous in low snow conditions). Other routes exist on the south and west sides, but of greater difficulty and longer approaches.

See also

References

  1. ^ a b "Lyell 2". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2009-06-22.
  2. ^ "Mount Lyell, California". Peakbagger.com. Retrieved 2009-06-22.
  3. ^ "Mount Lyell". ListsOfJohn.com. Retrieved 2012-03-31.
  4. ^ a b "Sierra Peaks Section List" (PDF). Angeles Chapter, Sierra Club. Retrieved 2008-09-28.
  5. ^ Secor, R.J. (2009). The High Sierra Peaks, Passes, and Trails (3rd ed.). Seattle: The Mountaineers. pp. 415–417. ISBN 978-0898869712.
  6. ^ Farquhar, Francis P. (1926). Place Names of the High Sierra. San Francisco: Sierra Club. Retrieved 2009-06-22.
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