A bit of errata: The peak of My Lyell, from which rises the headwaters of the Tuolumne River on its north flank and the Merced River on its southwestern flank, is 13,114′ in elevation and is the highest point in Yosemite National Park.
Cloud’s Rest, at 9,930′, is a subsidiary of Tressider Peak which only rises to 10,600′. Cloud’s Rest appears very prominent due to its relative isolation and proximity to Yosemite Valley, with a 5,000′ wall of sheer glacially polished granite comprising its northern slope and the southern wall of treacherous and imposing Tenaya Canyon.