Mount Lyell, mountain in California
Mount Lyell is the highest summit in Yosemite National Park, rising to 13,114 feet along the boundary between Madera and Tuolumne Counties. The peak displays bare rock formations typical of the Sierra Nevada, surrounded by alpine meadows at its base.
The mountain was named after Charles Lyell, a Scottish geologist whose 19th-century work fundamentally shaped modern understanding of Earth sciences. This naming honors his lasting influence on geological thought.
Climbing requires experience with technical rock and proper gear, as multiple sections demand scrambling ability. Visitors should prepare for high elevation and sudden weather changes, particularly during summer months.
The peak holds a permanent ice field that was once an active glacier before transforming due to warming temperatures. This change demonstrates how climate shifts are reshaping the alpine landscape of the Sierra Nevada.
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