Walk-up road to Geyser looking north
From the high points of the North SF Bay Area in Marin County 3 peaks stand out on the far horizon to the north. From right to left is hulking Mt. St. Helena
and Cobb Mtn.
for their height and Geyser Peak for its position. Geyser Peak sits on the western scarp of the Mayacamas Mountains above Alexander Valley about 13 miles northwest of Mt. St Helena and 5 miles northwest of Geyserville. A decent paved road goes up to a pass a few miles northeast of the peak. From here an easy walk-up road with open views leads to the summit with a 360 panorama if you walk the perimeter and ignore the commercial facilities. Views include Mt. Tamalpais
on the horizon 60 miles south, Mendocino Nat. Forest peaks to the north, Konocti
, Cobb northwest and St. Helena to the southeast.
For more on peaks in the area: Bob Burd trip report.
South from Geyser Peak
From Hwy. 128 in Alexander Valley take the Geysers Road 10 miles up to a pass and park off to the left beside the gate.
Geyser Peak from the Geyser Road
Beyond the gate an easy rolling road with open views and a steep section at the end gets you to the summit with transmission towers. About 2 miles and 1,000' gain one way.
The facilities on the summit are corporately owned so private property issues should not be a problem.
When to Climb
Geyser Peak south face
Year around. Gets hot in summer and could be snow in winter.
Southeast view on the walk back
No camping in area.
Current weather and forecastClick here
for the Geyserville forecast.
Northwest from Geyser Peak