Grasshopper Pass
Peak · 12,528 ft · Eastern Sierra corridor
Grasshopper Pass is a 12,528-foot alpine saddle in the Eastern Sierra, perched between desert basins and Sierra crest. Wind funnels across the exposed ridge; expect sustained gusts and rapid afternoon deterioration.
Wind dominates. Morning hours tend calm relative to afternoon; the pass sits exposed to lake and valley drafts. Temperature swings are sharp at this elevation. Snow persists into early summer, and cornices form on the lee side after storms. Crowding is light year-round.
Over the last 30 days, the average NoGo Score has held at 37, with wind averaging 13 mph and temperatures at 25°F; gusts have topped 40 mph on several days. The week ahead follows the typical spring pattern: early-week stability giving way to weekend wind and colder nights. Plan trips for calm midweek windows and head down before 2 p.m.
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About Grasshopper Pass
Grasshopper Pass sits at the crest of the Eastern Sierra, roughly 40 miles northeast of Bishop via Highway 395 and local forest roads. The pass marks a watershed divide between the Inyo and Mono basins; access is typically from the west via the White Mountains or from the east via high desert approach roads. Snow closure extends the approach season from late spring through early autumn. The area is within the avalanche terrain mapped by ESAC, with slope instability common in the weeks after storms and during rapid freeze-thaw cycles in late spring.
Winter and early spring bring deep snow, avalanche danger, and temperatures that average 25°F across the rolling 30-day window. Wind is the dominant weather driver year-round, with average speeds of 13 mph and gusts regularly exceeding 40 mph. Afternoon wind intensifies as thermal circulation builds off warming lake and valley surfaces; mornings offer the most stable window. Summer brings snow retreat and slightly warmer conditions, though wind persists. Crowding is minimal, with an average score of 2 across the rolling 30-day period, reflecting the pass's remoteness and technical access.
Grasshopper Pass suits experienced mountaineers, ski mountaineers planning spring ascents, and peak baggers comfortable with exposed ridges and snow navigation. Weather windows are short and demand flexibility. Carry a descent plan in case afternoon wind becomes unmanageable. Routes cross avalanche terrain; assess snowpack stability before committing and carry transceivers, shovels, and probes. Parking is limited and trailhead access may require high-clearance vehicles depending on road condition. Smoke from summer wildfires can degrade visibility on otherwise clear days.
Nearby peaks include White Mountain (14,246 ft) to the north and basin approaches from Patriarch Grove. The neighboring Inyo Craters and Glass Mountain areas offer alternative alpine touring when Grasshopper Pass is snow-locked or wind-swept. For hikers seeking lower-elevation Eastern Sierra access, Bishop Pass and Kearsarge Pass provide faster approaches with less avalanche exposure, though conditions are similarly wind-prone.