Unnamed Thermal Spring

Humboldt County, Nevada · Near Winnemucca
41.7220°N, 118.5230°W · 4,318 ft
163°F 4,318 ft Open Roadside Bureau of Land Management
Very Hot Source, Use Extreme Caution

At 163°F, the source water at This spring is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

Water at this unnamed thermal point in Humboldt County comes out far too hot to touch, well up into scalding territory. The ground belongs to the Bureau of Land Management and is administered from the Humboldt River Field Office, with Winnemucca the nearest city at sixty-odd miles. Access is on record as open. A USGS crew sampled it in October 1960 and found alkaline water with a modest mineral load. Someone has photographed it, and the image is on file.

Location

This one is practically on the road, a few dozen feet from the track, though the record leaves that track unnamed. Basin elevation. The winters drop a fair bit of snow, close to three feet across the season, and the rest of the year is dry. Plain BLM land. Nothing on file describes the ground around the source or says if anything has been built there.

The record gives winter the best marks, which for a roadside stop mostly means watching the snow. This water will scald. Keep skin out of it and keep anyone unsteady on their feet back from the edge. No fee appears in the record and there is no campground on file. The chemistry dates from 1960.

Terrain

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.

Aerial view of the ground around the spring LiDAR bare-earth view of the same ground around the spring
Aerial LiDAR bare earth

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
Open ground
Flat, open ground all around.
Highest ground nearby
19 ft above the spring
Within a quarter mile, to the north
Cross-section through the spring

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.

Heat Below
95 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 40% 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.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
31°
Jan
34°
Feb
42°
Mar
49°
Apr
58°
May
69°
Jun
79°
Jul
78°
Aug
68°
Sep
54°
Oct
41°
Nov
30°
Dec
Annual Precip: 10.7 in Annual Snow: 31.4 in
Best Time to Visit
December Air 30°F · Water 163°F · +133° contrast
January Air 31°F · Water 163°F · +132° contrast
February Air 34°F · Water 163°F · +129° contrast
December offers 49°F more contrast than July
Current Conditions
Clear SSE 33.0 mph
Tuesday 76° Low 46° Sunny
Spring is +87° warmer
Wednesday 74° Low 48° Sunny 2% precip
Spring is +89° warmer
Thursday 72° Low 50° Isolated Rain Showers then Mostly Sunny 17% precip
Spring is +91° warmer
Friday 76° Low 48° Sunny 4% precip
Spring is +87° warmer
Saturday 79° Low 49° Sunny
Spring is +84° warmer
Water Chemistry Sampled 1960-10-07

The water at This spring is alkaline (pH 9.3) with 344 mg/L total dissolved solids.

pH 9.3 Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 3 mg/L
May support bone density and joint health
Magnesium 0 mg/L
Known for muscle relaxation and stress relief
Sodium 90 mg/L
Supports circulation and skin hydration
Sulfate 46 mg/L
Traditionally used for skin conditions and inflammation
Chloride 12 mg/L
Natural antiseptic with skin health benefits
Where to Stay

Some links are affiliate links. We may earn a commission at no extra cost to you.

Temperature
163°F
Warm Hot Boiling
Water Temp 163°F (73°C)
Avg Air Temp 53°F
Above Ambient +110°F
Great soaking conditions September
Access
Open
Road Access Roadside
Distance to Road 43 ft
Land
Ownership Federal
Agency Bureau of Land Management
Designation PUB
Unit Humboldt River Field Office
Manager Bureau of Land Management
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at ?
has a water temperature of 163°F (73°C). This is considered a hot spring, well above body temperature.
Where is located?
is located in Humboldt County, Nevada at 4,318 feet elevation, near Winnemucca. Coordinates: 41.7220°N, 118.5230°W.
How do I get to ?
has Roadside road access (43 ft from the road).
Is free to visit?
has Open access. It is managed by Bureau of Land Management.
What minerals are in the water at ?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 9.3 (alkaline). Total dissolved solids measure 344 mg/L.
Is it safe to soak at ?
No, not at the source. The water at reaches 163°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.
Sources: USGS NWIS