Ruby Peak (California)
Encyclopedia
Ruby Peak is a thirteener
Thirteener
In mountaineering in the United States, a thirteener is a mountain that exceeds above mean sea level, similar to the more familiar "fourteeners," which exceed...

 on the Sierra Crest
Sierra Crest
The Sierra Crest is a ~ generally north-to-south ridgeline that demarcates the broad west and narrow east slopes of the Sierra Nevada and that extends as far east as the Sierra's topographic front...

, north of Mount Mills. It is in the John Muir Wilderness
John Muir Wilderness
The John Muir Wilderness is a wilderness area that extends along the crest of the Sierra Nevada of California, USA for , in the Inyo and Sierra National Forests. Established in 1964 by the Wilderness Act and named for naturalist John Muir, it contains...

 and on the boundary between the Sierra National Forest
Sierra National Forest
Sierra National Forest is a U.S. National Forest located on the western slope of central Sierra Nevada in the state of California. The forest is known for its mountain scenery and natural resources. Forest headquarters are located in Clovis, California...

 and the Inyo National Forest
Inyo National Forest
Inyo National Forest is a federally administered forest in the United States. The forest covers parts of the eastern Sierra Nevada of California, and the White Mountains of California and Nevada. It contains two wilderness areas: the John Muir Wilderness and the Ansel Adams Wilderness...

. The eastern slope drains into Rock Creek
Rock Creek (Owens River)
Rock Creek is a stream that flows from the high Eastern Sierra Nevada to the Owens River in Mono County of eastern California. The upper watershed is in the John Muir Wilderness of the Sierra and Inyo National Forests.-Course:...

 which feeds the Owens River
Owens River
The Owens River is a river in southeastern California in the United States, approximately long. It drains into and through the Owens Valley, an arid basin between the eastern slope of the Sierra Nevada and the western faces of the Inyo and White Mountains. The river terminates at Owens Lake, but...

 while the western slopes drains in Mono Creek which feeds the South Fork of the San Joaquin River
San Joaquin River
The San Joaquin River is the largest river of Central California in the United States. At over long, the river starts in the high Sierra Nevada, and flows through a rich agricultural region known as the San Joaquin Valley before reaching Suisun Bay, San Francisco Bay, and the Pacific Ocean...

.

Climbing

The first ascent was on July 24, 1946 by Fritz Gerstaker and Virgina Whitacre by the , west couloir
Couloir
A couloir is a narrow gully with a steep gradient in a mountainous terrain. A couloir may be a seam, scar, or fissure, or vertical crevasse in an otherwise solid mountain mass...

 route. A grade IV, class 5.11
Yosemite Decimal System
The Yosemite Decimal System is a three-part system used for rating the difficulty of walks, hikes, and climbs. It is primarily used by mountaineers in the United States and Canada. The Class 5 portion of the Class scale is primarily a rock climbing classification system. Originally the system was...

route, known as Technical Knockout, ascends Ruby Wall and features a large roof. It was first climbed by Richard Leversee, Kim Miller and Roanne Miller in July 1989.
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