About This Route
Lyell Canyon to Donohue Pass is a premier 24-mile out-and-back from Tuolumne Meadows, gaining 2,500 feet through lush meadows to the Sierra crest at 11,056 feet. Begin at Lyell Canyon trailhead, follow the John Muir Trail corridor past Lyell Glacier views, camp in designated sites. Permits essential for JMT quota. Ideal for JMT thru-hikers acclimating. Follow NPS bear storage rules and LNT by dispersing use in meadows.
Safety Considerations
Snow bridges over Lyell Fork fail in spring; probe with poles, per REI protocols. Donohue Pass thunderstorms deadly; summit early. River crossings hazardous May-July; use wading sticks. Glacier crevasses hidden; stay roped if venturing near. Wind chill drops temps 30 degrees; windshell required.
Essential Gear
Bearikade canister, MSR Guardian filter, altimeter watch, snowshoes (early), stove fuel. Nemo Hornet tent. Crampons for pass if icy.
Emergency Tips
Avoid glacier solo; rope up. Pass SAR at 209-372-0286. Three fires for night signals.