Drug Dome
Peak · 9,342 ft · Yosemite corridor
Drug Dome rises to 9,342 feet in the Yosemite corridor of California's Sierra Nevada. A high-elevation peak with avalanche terrain, it demands winter caution and rewards clear-weather visits with exposure to afternoon wind.
Wind climbs through the day, funneling off the high lakes and ridges by mid-afternoon. Morning calm gives way to 9 mph average winds that regularly gust to 30 mph. Temperatures hover near freezing even in spring; snowpack persists into late season. Head early and plan retreat before noon if exposed.
Over the past 30 days, Drug Dome has averaged a NoGo Score of 33.0, with temperatures near 30 degrees Fahrenheit and average winds of 9 mph. The week ahead mirrors this pattern: expect morning windows before wind and cold tighten. Watch the forecast for wind gusts exceeding the 30 mph maximum seen in the rolling year; those days are poor for travel in avalanche terrain.
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About Drug Dome
Drug Dome sits in the high Sierra between Tenaya Lake and Cathedral Lakes, accessed via Highway 120 through Tioga Pass and the Yosemite high country. The peak lies at the margin of the Yosemite corridor, within the jurisdiction of the Sierra Avalanche Center. Approach is primarily from the Tenaya Lake parking area or Cathedral Lakes trailhead; both require Highway 120 to be open (typically late May through early November). Winter access is technical and avalanche-prone; most traffic occurs from June through September when snow is gone or consolidated.
Drug Dome typifies high-Sierra spring and early-summer weather: freezing mornings, rapid wind rise by mid-day, and persistent snowpack through May. The 30-day average temperature of 30 degrees Fahrenheit and 9 mph wind are seasonally modest but on-peak for late April. Expect maximum winds around 30 mph on windy days; crowding runs light (3.0 average on the rolling 30-day window) due to low base popularity and the peak's technical approach. Winter snowfall is heavy; avalanche terrain on the northeast aspects and hanging snow on steeper sections require constant assessment. By late June, the approach dries, but wind remains a daily presence.
Drug Dome suits experienced mountaineers and ski mountaineers with avalanche training. The peak offers scrambling in dry season and ski-touring potential in spring when snowpack is stable and consolidated. Experienced visitors plan around avalanche risk in the approach gullies and the persistent afternoon wind that accelerates on clear days. Parking at Tenaya Lake and Cathedral Lakes fills early on weekends; weekday mornings offer the best combination of solitude and calm. Bring insulated layers even in summer; the 45-degree maximum temperature recorded in the rolling year is still cold for exposure above 9,000 feet.
Cathedral Lakes, directly south, offer a lower-elevation alternative (8,500 to 9,100 feet) with similar Sierra character but faster snow melt and slightly more accessible scrambling. Tenaya Lake itself provides a wind-sheltered water access point when conditions rule out higher terrain. For backcountry skiers, the Cathedral Range proper to the east offers larger descents and more forgiving approach angles, though avalanche terrain demands the same disciplined assessment as Drug Dome's gullies.