Forsyth Peak
Peak · 11,182 ft · Yosemite corridor
Forsyth Peak is an 11,182-foot summit in the Yosemite corridor of California's Sierra Nevada. Sit above treeline with exposure to afternoon wind and high-Sierra weather; access demands winter climbing skill or late-season scrambling.
Wind averages 14 mph over the rolling 30-day window but can spike to 39 mph, especially mid-afternoon as thermal circulation builds off neighboring lakes and ridges. Morning calm typically holds until late morning; by afternoon, gusts rake the exposed ridgeline. Temperature hovers around 25 degrees Fahrenheit in the rolling 30-day average, dropping to 12 degrees Fahrenheit at night. Crowding remains light year-round at a 3.0 out of 10 average.
The last 30 days show a 33.0 NoGo average score with swings from 6.0 to 50.0, driven by wind and temperature volatility typical of high-Sierra spring. The 30-day average wind of 14 mph disguises daily gusts that can exceed 39 mph. The week ahead will follow similar patterns: expect calm mornings, rising wind by mid-afternoon, and cold nights. Plan activities for dawn to early morning, and monitor wind forecasts before committing to the ridge approach.
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About Forsyth Peak
Forsyth Peak sits at 11,182 feet on the eastern Sierra crest within the Yosemite corridor, roughly 30 miles southeast of Yosemite Valley via Highway 120 and secondary roads. The peak stands in the Mount Dana massif, accessible from the Tioga Pass gateway (Highway 120). Winter and spring approaches demand mountaineering or ski-mountaineering skills and awareness of avalanche terrain; the peak has substantial avalanche exposure on north and east slopes. Summer approach via established class-2 scrambling from Mono Lake side becomes possible only after snowpack consolidates or melts, typically mid-July onward. Base popularity is low at 0.2, meaning very few visitors attempt this summit in any given month.
Forsyth Peak's weather pattern is defined by high-altitude exposure and proximity to Mono Lake's thermal influence. Over the rolling 30-day window, average temperature sits at 25 degrees Fahrenheit, with year-round lows bottoming near 12 degrees Fahrenheit. Maximum wind in the rolling 365-day window reaches 39 mph, and the 30-day average of 14 mph understates the afternoon gusts that rake exposed ridges. Spring and early summer bring the most volatile conditions; snowpack instability is the primary hazard before July, and wind becomes the dominant daily annoyance through summer and fall. Crowding remains minimal throughout the year at a rolling 30-day average of 3.0 out of 10, reflecting the peak's remoteness and technical approach.
Forsyth Peak suits backcountry mountaineers, ski tourers in spring, and scramblists during stable snow-free windows. Winter and spring visitors must carry avalanche rescue gear, understand slab stability, and be comfortable moving on steep, icy terrain. Summer scramblers should expect exposed ridge walking with minimal shade, intense solar radiation, and afternoon wind that can exceed 25 mph. Parking near Tioga Pass or Lee Vining becomes constrained on holiday weekends; plan arrival by dawn if timing coincides with summer or fall holiday. Water sources are sparse above treeline; carry sufficient capacity or melt snow at base camps.
Nearby peaks within the same Sierra crest cluster include Mount Dana (13,053 feet, more popular but higher exposure to afternoon wind) and Mono Basin-facing peaks accessible from the east side. Forsyth Peak's low base popularity means fewer crowds than Dana or the Yosemite Valley rim, but also fewer established water caches and trail maintenance. Visitors comfortable with the avalanche terrain and afternoon wind trade a longer approach for solitude and a true high-Sierra experience largely free of crowds.