Mark West Springs
Mark West Springs in Sonoma County lies about three miles from Larkfield-Wikiup, right beside a road the record leaves unnamed. The water is warm, a few degrees below body heat. There is a photo. Ownership is not filled in and access status is blank too, so the record cannot say if stopping is allowed.
Seventy-odd feet from the road. Low elevation, a few hundred feet, with a fair amount of rain and no snow on record. the record gives no land unit. The closest camping listed is the boat-in sites at Lake Sonoma, about nineteen miles away, which is a long way for a roadside spot.
December through February score highest on file, and without snow there is no seasonal barrier. The water cannot burn; it is on the cool side for a soak. Land status is the thing to sort out first, since nothing here grants public entry. No chemistry is on record.
Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Mark West Springs.
Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.
- Setting
- Hillside
- The spring sits on a steep slope that climbs to the southwest.
- Highest ground nearby
- 235 ft above the spring
- Within a quarter mile, to the southwest
A slice through the ground from northwest to southeast, about 0.6 miles end to end.
Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.
That's about twice the US average of 65. It's higher than at 91% of the springs on this site.
Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.
See every spring on the geothermal heat map →
Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.
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Overview Lake Sonoma's Boat-In Sites are scattered around beautiful Lake Sonoma, only a 45-minute drive north of Santa Rosa and a two-hour drive from San Francisco. BOAT-IN CAMPGROUNDS ARE ACCESSIBLE BY WATER OR HIKING ONLY, THERE IS NO VEHICLE ACCESS TO ANY BOAT-IN CAMPGROUNDWorld famous vineyards and a land rich in history surround the lake, where visitors enjoy boating, fishing and exploring the area's extensive trail network.Recreation The lake provides great boating and swimming opportun...
Mark West Springs is road-accessible, so you can bring more gear.
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