McGee Mountain
Peak · 10,843 ft · Mammoth Lakes corridor
McGee Mountain is a 10,843-foot peak in the Mammoth Lakes corridor of California's Sierra Nevada, accessible via McGee Creek drainage. Alpine exposure and reliable afternoon wind make it a testing ground for high-elevation backcountry skills.
McGee Mountain sits in the funnel of McGee Creek canyon, which channels wind off the Sierra crest by afternoon. Morning windows close fast; expect sustained gusts of 11 mph average, spiking to 27 mph by late day. Snowpack stability on north-facing slopes demands avalanche awareness through spring.
Over the past 30 days, McGee Mountain averaged a NoGo Score of 35, with temperatures hovering around 38 degrees Fahrenheit and wind averaging 11 mph. The week ahead will track the typical late-spring pattern: calm mornings deteriorate into afternoon wind as the day heats the canyon. Watch the max wind spike above 27 mph during the transition.
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About McGee Mountain
McGee Mountain rises above McGee Creek, one of the primary drainages between Bishop and Mammoth Lakes. The peak sits directly east of US Highway 395, roughly 8 miles north of Mammoth Mountain; the McGee Creek trailhead is the standard launching point. From Mammoth, take Highway 395 north and turn east on McGee Creek Road; the road ends at a developed parking area. The peak itself lies in avalanche terrain. High-Sierra exposure and rocky terrain above 10,000 feet mean navigation demands map and compass skill or GPS. Spring conditions bring wet slab hazard on steep north-facing aspects; check ESAC avalanche forecasts before any ascent above tree line.
McGee Mountain's weather is shaped by its position at the Sierra crest. The 30-day average temperature is 38 degrees Fahrenheit, with a historical annual range of 15 to 56 degrees. Wind averages 11 mph but regularly gusts to 27 mph, driven by pressure funneling through the McGee Creek drainage. Afternoon heating primes the canyon to channel stronger gusts by midday and evening. Winter and early spring bring deep snowpack; late spring transitions are unstable. Crowding averages 2 on the 10-point scale, reflecting the remote approach and technical nature. This is not a weekend tourist destination.
McGee Mountain suits experienced mountaineers and ski mountaineers with solid route-finding and avalanche assessment skills. The peak attracts skiers during spring corn cycles when lower slopes stabilize, typically in late April and May. Summer ascents are faster but more exposed to afternoon lightning. Solo parties and small groups are typical; parking fills only on rare clear weekends after major snow dumps when ski touring conditions align. Plan for a dawn start to maximize morning calm and finish before afternoon wind peaks. Bring a full avalanche kit (beacon, probe, shovel) and check snowpack temperature profiles on north aspects.
Nearby alternatives in the Mammoth corridor include the Mammoth Lakes Basin peaks (easier, more crowded) to the west, and the Bishop Pass drainage to the south. The Inyo National Forest around McGee Creek offers lower-elevation options on days when high-elevation wind is prohibitive. Compared to Yosemite High Country peaks, McGee Mountain sees less crowding but harder access; it favors committed parties over casual day-hikers.