Avalanche Pass
Peak · 10,019 ft · Eastern Sierra corridor
Avalanche Pass is a 10,019-foot alpine saddle on the Eastern Sierra crest, sitting on the boundary between Inyo and Tulare counties. Typically calmer than exposed ridges to the south, it sees moderate wind and consistent afternoon build-up.
Wind funnels from the west in afternoon hours, with 30-day average of 7 mph but gusts to 21 mph. Temperature averages 35 degrees Fahrenheit across the rolling month. Morning windows close quickly; the pass turns rowdy by 2 PM most days. Snowpack lingers into early summer, and avalanche terrain demands conservative route-finding.
The last 30 days have averaged a NoGo Score of 37, with temperature holding at 35 degrees Fahrenheit and wind at 7 mph average. Conditions have ranged from a low score of 4 to a high of 65, showing significant day-to-day variability in early season. Crowding remains light at an average of 2, typical for a high-altitude pass with avalanche exposure. The week ahead follows the same pattern: expect morning stability and afternoon wind increase; plan for snowpack and check avalanche advisories before any approach.
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About Avalanche Pass
Avalanche Pass straddles the Eastern Sierra crest at 10,019 feet, sitting between the Kern Plateau to the south and the Inyo backcountry to the north. Access is typically from the Shepherd Pass trailhead near Independence (via Highway 395 north of Lone Pine), a high-country approach requiring 2 to 3 days of hiking over rough terrain. The pass itself marks a natural notch on the divide and is a waypoint for through-hikers and mountaineers traversing the High Sierra; few day-trippers reach it. The nearest towns with services are Independence and Lone Pine, each 30 to 40 miles away by road.
Winter and early spring conditions dominate the pass for much of the year. Temperature across a 365-day span ranges from a minimum of 21 degrees Fahrenheit to a maximum of 54 degrees, with the 30-day average at 35 degrees showing the zone is still firmly in cold season. Snow depths typically exceed 10 feet into June, and avalanche terrain is extensive; the pass lies within the Kern River drainage and sees frequent wet-slab activity as spring warming progresses. Wind maxes out at 21 mph on the worst days, and afternoon funnelling is reliable by late morning. Crowding is minimal year-round at an average of 2, reflecting the remoteness and technical nature of the approach.
Experienced mountaineers and ski mountaineers are the primary visitors; casual day-hikers do not typically reach the pass. Those aiming for the pass in spring and early summer must carry avalanche beacon, probe, and shovel, and be competent in snow travel and route-finding. The Shepherd Pass trail is unmaintained above 10,000 feet and becomes technical in snow. Parking at the trailhead is limited and fills during the first weekends after Highway 395 snow gates open. Plan for an overnight camp at Shepherd Pass Lake or higher camps and expect to move cautiously across steep slopes on the final approach; corn snow in late morning provides the safest descent window.
Climbers targeting the Sierra Crest often pair Avalanche Pass with nearby peaks like Mount Williamson and Mount Tyndall to the south, or Mount Inyo and the White Mountains to the north. The pass itself is rarely a destination; it serves as a notch on long traverses. Hikers comfortable with high-altitude snow travel can bracket their schedule around the 7 mph average wind by heading out early morning and summiting before 2 PM, when afternoon wind picks up. Check Inyo National Forest avalanche and weather briefings before committing.