High Rock 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.
A warm spring in Lassen County, High Rock sits roughly 26 miles out from Janesville in dry country. The water is tepid, comfortable enough in summer heat and too cool for a winter soak. The USGS keeps a site number for it. Nothing in the record names a land owner, and public access has not been logged. No photo exists.
You park and walk about five hundred feet. That is all the record says about the approach, and it gives no road name. Snowfall is light for the region and annual rain is meagre, so expect dry ground most of the year. The spot sits around four thousand feet, with no land unit listed.
Black Mountain Lookout is the nearest campground on file, nearly nineteen miles off. Winter months score highest on the best-months list. With water this cool, a hot day suits it better than a cold one. Check land status before you go; none is recorded here.
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 High Rock Spring.
- Setting
- Open ground
- Flat, open ground all around.
- Highest ground nearby
- 29 ft above the spring
- Within a quarter mile, to the northeast
A slice through the ground from south to north, about 0.6 miles end to end.
Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.
That's close to the US average of 65. It's higher than at 14% 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.
Overview Black Mountain Lookout remained closed for the 2020 season and is expected to remain closed into 2021. Closure is due to COVID related demands in maintaining a safe environment for our customers and our staff. Black Mountain Lookout is located on the eastern edge of the Beckwourth Ranger District, 10 miles from Highway 395, near Milford, California. The lookout was constructed in 1934 and is a great example of Civilian Conservation Corps (CCC) architecture. The C-3-type lookout is si...