Marie Pass
Peak · 11,984 ft · Yosemite corridor
Marie Pass sits at 11,984 feet in the Yosemite Sierra Nevada corridor, a high alpine crossing exposed to sustained westerly wind and snow. Winter and spring traffic is sparse; exposed ridgeline position makes afternoon conditions unpredictable.
Wind drives the day at Marie Pass. Morning hours are calmer, but afternoon thermals and valley pressure systems funnel gusts across the ridge by midday. The 30-day average wind of 12 mph masks frequent 30+ mph surges. Snowpack persists into early summer; cornices and wet-slab instability dominate spring descent plans.
Over the last 30 days, Marie Pass averaged a NoGo Score of 34 with temperatures at 22 degrees F and average wind of 12 mph, though gusts have reached 33 mph. The week ahead will track similar patterns: expect morning windows before 10 a.m. and watch for afternoon wind spikes tied to high-pressure systems moving through the Sierra. Snowpack condition and avalanche risk remain primary gates for safe passage.
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About Marie Pass
Marie Pass is a high-Sierra saddle crossing in Yosemite's eastern approach corridor, sitting at 11,984 feet on the crest between the High Sierra backcountry and the valley. Access is primarily via the Yosemite High Sierra Camps loop or the Tuolumne Meadows approach from Highway 120 (Tioga Road). The pass itself is not a destination peak but a necessary crossing on the Sierra High Route and other multi-day traverses. Trailhead parking and supplies are concentrated in Tuolumne Meadows, roughly 10 to 15 miles northwest. Winter closure of Tioga Road typically extends the approach season into mid-summer and shortens the safe window to September and early October.
Marie Pass sits in high-alpine terrain where temperature swings are extreme. The 365-day record shows lows of 8 degrees F in winter and highs of 33 degrees F, with April averages near 22 degrees F. Wind is relentless; the 30-day average of 12 mph is punctuated by gusts to 33 mph or more. Afternoon wind is the rule, not the exception, as solar heating and pressure gradients drive ridge-top turbulence from late morning onward. Snow lingers into July in most years; spring travel requires avalanche awareness and competent snow travel skills. Crowding remains low year-round (30-day average of 3.0), a reflection of the technical skills and commitment required to reach and cross the pass.
Marie Pass suits experienced backpackers and mountaineers on multi-day Sierra traverses. Casual day-hikers should avoid; the exposure, altitude, and avalanche terrain demand solid route-finding, self-rescue capability, and weather discipline. Plan for morning starts before 8 a.m. to cross before afternoon wind peaks. Bring a large safety margin for weather deterioration; descent or shelter options are limited once committed to the saddle. Trekking poles and traction devices are standard through late spring. Summer parties should still carry an ice axe and probe; cornices and buried bergschrunds pose fall hazards even in August.
Marie Pass lies on the boundary between Yosemite's Lyell Fork drainage and the Tuolumne River system. Nearby passes and peaks including Donohue Pass and Island Pass offer alternative routes for those with flexibility; each has distinct wind exposure and snowpack timing. The High Sierra Camps network to the west provides resupply and shelter for longer traverses. Tuolumne Meadows itself sits 8 to 10 miles downslope and offers true amenities and ranger station information on current avalanche risk and route conditions. Check the Yosemite Avalanche Center (SAC) advisories before any spring travel; the pass sits squarely in terrain prone to wet-slab and cornice failures as the snowpack ripens.