Bloody Mountain
Peak · 12,549 ft · Mammoth Lakes corridor
Bloody Mountain is a 12,549 ft peak in the Mammoth Lakes corridor of California's Sierra Nevada. Steep and wind-exposed, it sits above mixed terrain where afternoon gusts dominate conditions.
Bloody Mountain is an exposed ridgeline peak where wind accelerates from the west and funnels through adjacent drainages. Morning calm often gives way to sustained afternoon wind, typically 13 mph on average with gusts to 41 mph. The mountain holds snow late into spring, creating avalanche terrain that demands constant assessment of snowpack stability.
Over the last 30 days, the 30-day average wind has been 13 mph with peaks to 41 mph and an average NoGo Score of 36.0. Temperatures average 25 degrees Fahrenheit; crowding remains light at 2.0 on the scale. The week ahead follows typical spring patterns: morning windows narrow as afternoon wind strengthens. Plan for early starts and be ready to descend by early afternoon.
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About Bloody Mountain
Bloody Mountain rises as a standalone peak between the Mammoth Lakes basin and the Inyo escarpment. It sits roughly 15 miles east of the town of Mammoth Lakes, accessible via Highway 395 and secondary Forest Service roads that branch south from the Mammoth area. The peak itself has no marked trail; approach routes vary by season and snowpack. Winter and early spring ascents require winter climbing gear and avalanche awareness; summer access via ridge scrambling is less technical but still exposed. The location sits within the Eastern Sierra Avalanche Center (ESAC) forecast zone and slopes above terrain that drains steeply toward the Owens Valley.
Winter and spring (November through May) bring sustained snow and significant avalanche hazard; the peak averages 25 degrees Fahrenheit over the rolling 30-day window with a maximum recorded temperature of 43 degrees Fahrenheit across the year. Wind is the dominant constraint: the 30-day average wind of 13 mph masks afternoon surges to 41 mph that are common from late morning onward. Summer (June through September) sees the terrain dry out and wind moderate somewhat, though the exposed ridgeline remains gusty. Crowding is light year-round, with a 30-day average of 2.0; most ascents occur in summer and early fall when snowpack retreats. Spring is the window when parties must balance snowpack conditions against deteriorating weather.
Bloody Mountain suits experienced mountaineers and ski mountaineers with avalanche training and solid route-finding skills. Solo hikers and scramblers should expect a sustained scramble on exposed ground with limited bail-out options. Summer parties looking for a straightforward day peak should seek lower neighbors like Crowley Peak or San Joaquin Mountain instead. Winter climbers and ski tourers must check current avalanche forecasts from ESAC before any approach; cornices and wind-loaded slopes are common hazards. Afternoon wind makes extended summit time uncomfortable; most successful ascents depart before dawn and descend by early afternoon. Parking is roadside and informal; the approach often involves navigating closed or gated Forest Service roads depending on season.
The Mammoth Lakes corridor hosts dozens of accessible alternatives at lower elevations. Mammoth Mountain's higher elevations (11,053 ft at the main summit) draw much heavier crowds and have faster weather transitions. Crystal Lake and Horseshoe Lake offer lower-altitude non-technical access with more stable wind patterns in morning hours. Skiers and snowshoers often pair Bloody Mountain with descents into adjacent basins when snowpack permits. Check ESAC conditions and forecast before committing; the peak's exposure to afternoon wind and avalanche terrain make it a commitment rather than a casual outing.