Poison 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.
Poison Springs is a thermal point in Twin Falls County, about seven miles from Buhl, on Bureau of Land Management ground managed out of the Burley office. The record classes it as hot but carries no temperature measurement, so there is nothing to say about sitting in it. Access is listed as open. With a name like that, a test before touching seems reasonable.
BLM public land at low elevation for Idaho. The climate figures read as desert: around ten inches of precipitation a year and very little snow, with a warm average. The nearest road is a little over half a mile off and is not named in the record, so expect to walk.
No best season is listed and no campground is on file. There is no water sample either. The public may go in, and the land is federal. Without a temperature reading, approach the water as unknown and test it with a fingertip first. Buhl is the nearest town.
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 Poison Springs.
- Setting
- Hillside
- The spring sits on a steep slope that climbs to the northeast.
- Highest ground nearby
- 186 ft above the spring
- Within a quarter mile, to the northeast
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 69% 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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