Gabbot Pass
Peak · 12,270 ft · Mammoth Lakes corridor
Gabbot Pass is a 12,270-foot alpine saddle in the Mammoth Lakes corridor of California's Sierra Nevada. A remote, windswept crossing between high-elevation drainages, it rewards calm-weather ascents and punishes afternoon gusts.
Wind dominates. Morning calm typically breaks by mid-day as thermal currents funneling off adjacent basins accelerate. Exposure is complete: no shelter, no tree line, no retreat once conditions deteriorate. Afternoon gusts regularly exceed 30 mph. Plan for early starts and early exits.
Over the past 30 days, Gabbot Pass has averaged 13 mph wind with peaks to 39 mph, and temperatures around 18 degrees Fahrenheit. The NoGo Score has ranged from 5 to 65, averaging 37; crowding remains minimal at 2.0. Watch the week ahead for wind spikes tied to pressure systems crossing the high desert; even modest high-altitude weather systems translate to severe exposure here.
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About Gabbot Pass
Gabbot Pass sits at the apex of the Mammoth Lakes corridor's eastern Sierra, roughly 40 road miles south of Mammoth Mountain via Highway 395. The pass connects the Owens Valley floor to the high Sierra interior and is accessed most commonly from the west via the Inyo National Forest road network or from the south through the Mule Pass drainage. Base popularity is low; the pass sees a fraction of the traffic that flows through better-known Sierra crossings. Elevation of 12,270 feet places it squarely in alpine tundra. There is no maintained trail to the pass itself; approach typically involves scrambling, snow gullies, or technical climbing depending on season and snowpack.
Winter and spring snow dominates the seasonal picture. The 365-day temperature range spans 4 degrees Fahrenheit in deep winter to 31 degrees in midsummer; such extremes reflect relentless exposure and thin air. Over the past 30 days, average temperature has held at 18 degrees and average wind at 13 mph, with gusts to 39 mph. Crowding averages only 2.0, meaning solitude is nearly guaranteed. Late spring and early summer bring the most stable windows; late September through October sees clear skies and benign afternoon winds as the thermal gradient weakens. November through April is avalanche terrain. Snowpack instability, cornices, and wind slab are routine hazards. The Eastern Sierra Avalanche Center maintains observations for this zone.
Gabbot Pass rewards backcountry skiers, mountaineers, and peak baggers willing to move fast and early. The exposed, technical nature filters crowds; you will rarely encounter more than one or two other parties. Conditions are unforgiving: there is no bail-out halfway up. Wind can pin you in place or blow you off balance. Afternoon electrical storms are a real hazard midsummer. Experienced high-altitude travelers should plan to summit and descend within a 4 to 6 hour window, starting well before dawn. Parking at trailheads in the Mammoth corridor fills quickly on weekends and holidays; mid-week ascents are strongly preferred.
Nearby alternatives include Bloody Mountain, San Joaquin Mountain, and the higher basins of the Ritter Range, all within the same corridor but with varying crowding, snowpack, and exposure profiles. The Mammoth Lakes area itself offers lower-elevation lakes and creek systems as less severe alternatives. Yosemite's passes (Donohue, Tioga) lie north and are more heavily trafficked. Gabbot Pass remains a specialist destination for those comfortable with isolated, wind-scoured terrain and prepared for rapid weather changes.