Tower Pass
Peak · 10,118 ft · Yosemite corridor
Tower Pass is a 10,118-foot peak in the Yosemite corridor of California's Sierra Nevada. This high alpine saddle commands the ridge between peaks and sits exposed to westerly flow.
Wind dominates Tower Pass. The 30-day average wind runs 13 mph with gusts to 39 mph; afternoon strengthening is reliable. Exposure is complete; shelter is absent. Morning windows close by mid-day.
Tower Pass has averaged a NoGo Score of 34 and wind of 13 mph over the past 30 days, with temperatures holding near 25°F. The week ahead brings typical high-altitude volatility. Watch the trend chart for wind spikes and crowding surges tied to Highway 120 opening windows.
30 days back / 7 days forward
Today's score by factor
About Tower Pass
Tower Pass sits at 10,118 feet on the high Sierra crest in the Yosemite corridor, roughly 8 miles northeast of Tenaya Lake. Access is via Highway 120 from the west (Yosemite Valley, roughly 90 minutes) or from Lee Vining to the east. The pass is a backcountry destination; no road crosses it. Winter closure of Highway 120 isolates the approach from either direction. Hiking routes ascend from the Tenaya Lake area or via Lyell Canyon drainage from the south. Snow persists at the pass elevation into early summer.
Tower Pass sits in the zone where spring snowmelt peaks and afternoon heating is still minimal. The 30-day average temperature is 25°F; annual range spans 9°F to 37°F. Wind averaging 13 mph year-round makes this an exposed, windswept location; gusts regularly exceed 30 mph. Crowding is light (average 3.0 on the NoGo scale) because access requires full backcountry routing. Late-winter and early-spring bring avalanche risk; wet-slab hazard rises sharply as the snowpack warms in mid-to-late spring.
Tower Pass suits experienced mountaineers and season-adapted backpackers. Day hikers from Tenaya Lake or multi-day traverses via Lyell Canyon form the typical user base. Skip this location if you lack avalanche awareness or winter travel skills. Spring ascents demand careful timing to avoid sun-warmed slopes in afternoon hours. Afternoon wind makes exposed camp or summit stops uncomfortable and dangerous; head here on calm mornings and descend before wind builds. Expect minimal crowds outside of the first few weekends after Highway 120 opens in late May.
Nearby alternatives include Cathedral Lakes (lower, more sheltered) and the Lyell Canyon high country to the south (more gradual elevation gain). Tower Pass differs from the popular Tioga Pass corridor peaks in that it demands committed backcountry travel and offers no road-adjacent parking. The Tenaya Lake approach is the most direct but still requires 10 to 12 miles of hiking.