Mount Prater
Peak · 13,474 ft · Eastern Sierra corridor
Mount Prater is a 13,474-foot peak in the Eastern Sierra corridor east of the Sierra crest. A remote summit above the Bishop area with avalanche terrain and strong wind exposure.
Wind dominates this exposed ridgeline; the 30-day average is 14 mph with gusts to 45 mph. Morning windows close by mid-day as thermal and lake-effect flow accelerates. Snow and cold persist into late spring; expect rime and wind-slab hazard on north aspects.
Over the last 30 days, Mount Prater has averaged a NoGo Score of 36, with temperatures near 20 degrees Fahrenheit and average wind of 14 mph. Crowding remains minimal at 2 out of 10. The week ahead will track late-spring patterns: watch for afternoon gusts and lingering snowpack instability on steep terrain.
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About Mount Prater
Mount Prater stands at 13,474 feet on the crest of the Eastern Sierra, roughly 20 miles north-northeast of Bishop via US-395 and local access roads. The peak sits in high-altitude terrain with active avalanche zones on its north and east faces. Access from the Bishop area requires 4WD roads and a sustained alpine approach; snow closes the lower trailheads until late spring. The nearest services and gas are in Bishop, making this a destination for experienced mountaineers with proper avalanche awareness.
Spring conditions here are volatile. Daytime temperatures average 20 degrees Fahrenheit over the last month, with a minimum of 7 degrees recorded in the 365-day window and a maximum wind gust of 45 mph. Afternoon winds are the norm; the 30-day average is 14 mph, driven by thermal pressure between the warm desert floor and the cold crest. Snowpack depth and stability vary sharply week to week. Crowding stays low because access is rough and the summit demands technical skill; count on seeing fewer than three parties on most days.
Mount Prater is suited to alpinists and climbers comfortable with avalanche terrain and exposure. Winter and spring ascents require crevasse rescue skill, current avalanche forecasts from ESAC, and a plan to descend before the wind turns vicious in early afternoon. Summer approaches the peak via scree and talus but retain exposure and rockfall hazard. Most parties aim for dawn starts and aim to summit by early afternoon. No water on the peak; cache fuel and melt snow at camp. Cell service is unreliable at elevation.
Nearby alternatives include Mount Humphreys (14,421 feet) to the south, which sits slightly lower and offers more established summer routes but similar wind and crowd exposure. Basin Mountain to the north presents a lower-angle entry to the crest but holds snow longer. The Bishop Pass corridor offers alpine lake crossings and shorter summits with faster turnover for those seeking lower-altitude training or alternative weather patterns in the same corridor.