Tahoe-Yosemite Trail Tahoe-Yosemite Trail The Tahoe-Yosemite Trail (TYT) is a long-distance trail in the Sierra Nevada mountain range of California. The trail courses from Meeks Bay at Lake Tahoe to Tuolumne Meadows in Yosemite National Park. The trail is a foot and equestrian path that passes through the Desolation, Mokelumne, Carson-Iceberg, Emigrant, and Yosemite Wilderness Areas and the Meiss Country (Dardanelles) Roadless Area. The United States Forest Service had begun work on the Tahoe-Yosemite Trail by 1916 with the intent of providing a path from Meeks Bay at Lake Tahoe to the northern boundary of Yosemite National Park. The expectation was that
Yosemite National Park the Sherwin (also called the pre-Tahoe), Tahoe, Tenaya, and Tioga. The Sherwin glaciers were the largest, filling Yosemite and other valleys, while later stages produced much smaller glaciers. A Sherwin-age glacier was almost surely responsible for the major excavation and shaping of Yosemite Valley and other canyons in the area. Glacial systems reached depths of up to and left their marks in the Yosemite area. The longest glacier in the Yosemite area ran down the Grand Canyon of the Tuolumne River for , passing well beyond Hetch Hetchy Valley. Merced Glacier flowed out of Yosemite Valley and into the Merced