High Sierra Backpacking Trail
What to Expect
Safety Advisory
Stream crossings can run fast and thigh-deep during snowmelt in June and early July — unbuckle your pack's hip belt before crossing and use trekking poles for stability.
Afternoon thunderstorms are common above treeline from July through September — plan to be off exposed ridges and passes by early afternoon, and know the signs of incoming lightning.
Bear canisters are required for all overnight trips — hanging food from trees does not work in the High Sierra, and rangers actively patrol for compliance.
Trail Details
Pro Tips
Pick up your wilderness permit from the Mineral King or Roads End ranger station the day before your trip — quota permits for popular trailheads fill fast, and walk-up availability is a gamble after mid-July.
Carry a reliable water filter and plan your fills around mapped streams rather than lakes — moving water is more reliable in late season, and several of the higher lakes can dry to puddles by September.
Camp at the second lake basin rather than the first — most backpackers stop at the earliest flat spot, so pushing another two miles buys you a campsite with better wind protection and far fewer neighbors.