Unnamed Thermal Spring
San Luis Obispo County has this unnamed thermal point about five miles from Paso Robles. The water runs soaking warm on the hotter side, and it sits within sixty-some feet of a road. Nothing on file names an owner, and access is unlisted. Warm water this close to Paso Robles with no access record is the kind of spot worth a phone call before a drive.
Low, dry country under 700 feet, with no snow and light winter rain. Sixty-odd feet from the closest road; whatever road that is, the record does not name it. Ownership is a blank and there is no unit or designation. Cerro Alto Campground, about sixteen miles away, is the closest camp listed.
Midwinter, per the record. Roadside. Camping at Cerro Alto is a drive of about sixteen miles. The water is close to bath-hot, so check it before you get in. Access and ownership are unknown; find out who controls it. No fee recorded.
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 this spring.
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
- Valley floor
- Gentle slopes rise on both sides.
- Highest ground nearby
- 108 ft above the spring
- Within a quarter mile, to the southeast
A slice through the ground from west to east, 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 67% 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 Cerro Alto Campground is a well-known hiking and mountain biking paradise. It is located a short distance from the sandy beaches of Morro Bay, where visitors enjoy surfing, fishing, kayaking, sailing, scuba diving and more. While the campground offers a serene, relaxed environment, both Morro Bay and the nearby town of Atascadero offer numerous dining opportunities, shopping, museums and other activities. Wine Tasting in the Tempelton, Paso Robles Area is also a very popular experi...
this spring is road-accessible, so you can bring more gear.
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