Treasure Col
Peak · 12,230 ft · Eastern Sierra corridor
Treasure Col is a 12,230-foot pass in California's Eastern Sierra, perched between the high basins east of the Sierra crest. Winter and spring conditions dominate; avalanche terrain requires caution and awareness.
Wind funnels through the col with afternoon gusts common; the 30-day average wind is 9 mph but peaks exceed 28 mph. Morning calm windows close by mid-day. Temperatures average 27 degrees Fahrenheit over the rolling 30-day period. Crowding stays light except after seasonal snowpack consolidates.
Over the past 30 days, Treasure Col averaged a NoGo Score of 36, with conditions ranging from as low as 4 to highs of 65. The rolling 30-day average wind of 9 mph masks afternoon spikes and variable timing. The week ahead will show whether spring warming continues to destabilize the snowpack or if cooler patterns return. Monitor avalanche forecasts from ESAC closely; Treasure Col sits in active avalanche terrain.
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About Treasure Col
Treasure Col straddles the crest of the Eastern Sierra in Inyo County, California, at 12,230 feet. Access is typically via Highway 395 north from Independence or south from Bishop. Most approaches involve either a long cross-country ski or summer scramble from the adjacent basins; winter entry demands avalanche training and awareness of the terrain on all flanks. The col itself is a high-altitude junction point rather than a developed trailhead, so planning requires knowledge of the specific drainage or peak you intend to reach. Nearby reference points include Inyo County ranger stations and outfitters familiar with Eastern Sierra access.
Seasonal patterns at Treasure Col are extreme. The 365-day temperature range spans 12 to 44 degrees Fahrenheit, marking a winter-dominated regime where snow persists through spring. The rolling 30-day average temperature of 27 degrees reflects typical winter or early spring conditions; late autumn and early winter see similar averages. Wind is a constant factor; the 30-day average of 9 mph underrepresents the afternoon surge, which can reach 28 mph and funnel through the pass unobstructed. Crowding remains minimal (2.0 on the rolling 30-day average), making solitude likely except immediately after major access corridors like Highway 120 open or during well-publicized ski-mountaineering windows.
Treasure Col suits backcountry skiers, ski mountaineers, and summer peak-baggers who understand avalanche assessment and high-altitude exposure. Winter visitors must carry full touring or mountaineering gear and check ESAC forecasts before departure. The col sits in avalanche terrain; slab hazard, wet-loose slides, and corniced ridges all pose risk depending on snowpack structure and recent weather. Summer ascents become possible in late season when snowpack is stable or melted, but afternoon wind and exposure demand early starts and careful descent planning. Experienced mountaineers pair Treasure Col with adjacent peaks to maximize a multi-day trip and reduce individual summit risk.
Nearby peaks in the high Eastern Sierra, including Inyo County's other high passes, offer similar exposure and avalanche terrain. Treasure Col sits more remote and lower-traffic than famous destinations like Mount Inyo or the Bishop Pass corridor, making it a destination for climbers seeking solitude and willing to accept the logistics and risk of access. The surrounding basins drain into the Owens Valley to the east and the Kern Plateau to the south; water, weather, and wind all funnel through the col, reinforcing its high-altitude character.