Unnamed Thermal Spring

Millard County, Utah · Near Delta
39.3050°N, 113.4910°W · 4,430 ft
81°F 48°F air · Good soaking weather 4,430 ft Open Short Walk Bureau of Land Management

An unnamed thermal point on BLM ground in western Millard County, around fifty miles from Delta. The water comes up warm, at a temperature you would call pleasant on a cold day and not notice on a hot one. Access is open on the record, the land is managed by the Fillmore Field Office, and there is a photograph on file. No USGS site number is attached.

Location

Dry basin country here, down at the low end of Utah's elevations. The closest road is a third of a mile off, and no name was ever put to it. Most years see under eight inches of precipitation fall here, and snow stays light. BLM manages the public land all around.

Plan for winter; the record lists December through February and the snow out here is rarely deep enough to matter. There is no campground nearby on file, so arrive self-sufficient. No water chemistry and no survey date are recorded, meaning the temperature could be off by a good margin. The walk from the road is short; nothing on file describes the route.

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
4 ft above the spring
Within a quarter mile, to the south

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
67 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 3% 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
36°
Feb
47°
Mar
54°
Apr
63°
May
76°
Jun
84°
Jul
82°
Aug
71°
Sep
57°
Oct
43°
Nov
31°
Dec
Annual Precip: 6.6 in Annual Snow: 17.9 in
Best Time to Visit
January Air 31°F · Water 81°F · +50° contrast
December Air 31°F · Water 81°F · +50° contrast
February Air 36°F · Water 81°F · +45° contrast
January offers 53°F more contrast than July
Current Conditions
48°F
Clear N 0.0 mph 46% Good soaking weather
Today 88° Low 60° Partly Sunny 1% precip
Wednesday 87° Low 59° Sunny 2% precip
Thursday 86° Low 55° Sunny 1% precip
Friday 82° Low 51° Sunny
Saturday 81° Low 52° Sunny 1% precip
Where to Stay

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Temperature
81°F
Warm Hot Boiling
Water Temp 81°F (27°C)
Avg Air Temp 56°F
Above Ambient +25°F
Mild soaking conditions September
Access
Open
Road Access Short Walk
Distance to Road 0.3 mi
Land
Ownership Federal
Agency Bureau of Land Management
Designation PUB
Unit Fillmore 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 81°F (27°C). This is a warm thermal spring.
Where is located?
is located in Millard County, Utah at 4,430 feet elevation, near Delta. Coordinates: 39.3050°N, 113.4910°W.
How do I get to ?
has Short Walk road access (0.3 mi from the road).
Is free to visit?
has Open access. It is managed by Bureau of Land Management.