Franklin Col
Peak · 11,810 ft · Mammoth Lakes corridor
Franklin Col sits at 11,810 feet in the Mammoth Lakes corridor, a high Sierra pass exposed to consistent wind and avalanche terrain. Winter and spring access demands careful timing.
Wind dominates Franklin Col. The 30-day average of 15 mph understates afternoon funneling; gusts hit 43 mph regularly. Temperature averages 23 degrees Fahrenheit over the past month. Snowpack persists through spring, making stability checks mandatory before approach.
Over the last 30 days, Franklin Col has averaged a NoGo Score of 36 with temperatures at 23 degrees and wind averaging 15 mph, typical for high-elevation Sierra passes in spring. The week ahead follows the same pattern: expect persistent afternoon wind, stable mornings, and lingering snow. Check avalanche conditions daily through ESAC before any approach.
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About Franklin Col
Franklin Col crowns a high pass in the Mammoth Lakes corridor of California's Sierra Nevada, lying at 11,810 feet elevation. Access is primarily from the east via Highway 395 and the Mammoth Lakes gateway; the col sits within terrain managed for backcountry skiing and mountaineering. The location is remote and requires solid winter travel skills, route-finding ability, and current avalanche information. Most approach attempts come from the Mammoth Lakes area during late spring through early fall when snow is manageable.
Weather at Franklin Col is dictated by its elevation and exposure. The 30-day average wind of 15 mph masks afternoon acceleration; gusts reach 43 mph in typical spring conditions. Temperature averages 23 degrees Fahrenheit over the last month, reflecting persistent high-altitude cold. Winter and early spring snowpack is heavy and unstable; ESAC avalanche forecasts must be checked before any travel. Summer offers the best climbing window, but afternoon wind is routine. Crowding remains light year-round, averaging 2.0 out of 10.
Franklin Col attracts experienced mountaineers and backcountry skiers willing to navigate avalanche terrain and high wind exposure. Parties should expect full winter gear even in late spring; snowpack lingers well into June in most years. Approach timing is critical: head for the col in early morning before afternoon wind picks up. Solo travel is not recommended given avalanche hazard and exposure. Park at Mammoth Lakes trailheads and allow a full day for approach and descent. Cell service is absent; carry communication devices and file a detailed trip plan.
The Mammoth Lakes corridor offers alternatives at lower elevation and with less avalanche exposure. Nearby peaks and passes in the range present similar wind patterns and spring conditions but at slightly lower altitude. Visitors should compare ESAC forecasts across the corridor to identify the safest day and location. Franklin Col's high elevation and persistent snowpack make it a spring and early summer destination only; winter approach is expert-only and rarely advisable given instability.