Unnamed Thermal Spring

Grant County, New Mexico · Near Arenas Valley
33.2120°N, 108.2280°W · 5,737 ft
149°F 64°F air · Good soaking weather 5,737 ft Open Short Walk US Forest Service Camping nearby (2.4 mi)
Very Hot Source, Use Extreme Caution

At 149°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.

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.

Scalding water. That is the first thing to know about this unnamed thermal point in the Gila National Forest, Grant County, thirty miles from Arenas Valley. The reading on file is well above the temperature that burns skin on contact. The land is Forest Service, access open, a short walk of a third of a mile from the nearest road, and Forks Campground is close by.

Location

About 5,700 feet, forested, with real snow in winter and a fairly wet year by regional standards. The road carries no name on file. Forks Campground sits around two and a half miles off. Nothing describes the source itself, a vent or a pool or a seep, and nothing says how the water cools once it leaves the ground.

Do not get in. Water this hot will scald in seconds, and there is no record of a cooled pool. Watch any dog or small child closely near it. The cold months are when to come. Camp at Forks. A 1967 sample came back near neutral with sodium and sulfate present. No fee recorded.

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.

Setting
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
329 ft above the spring
Within a quarter mile, to the east
Cross-section through the spring

A slice through the ground from northwest to southeast, about 0.6 miles end to end.

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

Heat Below
109 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 59% 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
37°
Jan
41°
Feb
49°
Mar
57°
Apr
64°
May
76°
Jun
74°
Jul
73°
Aug
67°
Sep
58°
Oct
47°
Nov
37°
Dec
Annual Precip: 15.3 in Annual Snow: 18.1 in
Best Time to Visit
January Air 37°F · Water 149°F · +113° contrast
December Air 37°F · Water 149°F · +112° contrast
February Air 41°F · Water 149°F · +108° contrast
January offers 40°F more contrast than June
Current Conditions
64°F
Clear WNW 12.1 mph 83% Good soaking weather
Today 79° Low 56° Showers And Thunderstorms Likely 55% precip
Spring is +70° warmer
Wednesday 80° Low 54° Showers And Thunderstorms 91% precip
Spring is +69° warmer
Thursday 82° Low 53° Showers And Thunderstorms Likely 65% precip
Spring is +67° warmer
Friday 83° Low 51° Partly Sunny then Showers And Thunderstorms Likely 57% precip
Spring is +66° warmer
Saturday 83° Low 50° Partly Sunny then Chance Showers And Thunderstorms 36% precip
Spring is +66° warmer
Water Chemistry Sampled 1967-07-21

The water at This spring is slightly alkaline (pH 7.9). It is notably rich in chloride (natural antiseptic with skin health benefits).

pH 7.9 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 16 mg/L
May support bone density and joint health
Magnesium 0 mg/L
Known for muscle relaxation and stress relief
Sodium 150 mg/L
Supports circulation and skin hydration
Sulfate 84 mg/L
Traditionally used for skin conditions and inflammation
Chloride 110 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Forks Campground 2.4 mi away

This campground features beautiful cliffs along the West Fork of the Gila River.This campground is a great place to stop on the way to the Gila Cliff Dwellings National Monument (15 miles north). Overnight camping is allowed in the upper portion of Forks; however, the lower portion of the Forks Recreation Site along the West Fork of the Gila River is day use only.

Reserve on Recreation.gov →
Mile-High Advisory 5,737 ft

this spring sits at 5,737 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 23% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
149°F
Warm Hot Boiling
Water Temp 149°F (65°C)
Avg Air Temp 57°F
Above Ambient +92°F
Great soaking conditions September
Access
Open
Road Access Short Walk
Distance to Road 0.3 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Gila National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use

Hike 1 waterfall near this spring

Looking for more outdoor adventures? Explore waterfall hikes near this spring, New Mexico.

Frequently Asked Questions
What is the water temperature at ?
has a water temperature of 149°F (65°C). This is considered a hot spring, well above body temperature.
Where is located?
is located in Grant County, New Mexico at 5,737 feet elevation, near Arenas Valley. Coordinates: 33.2120°N, 108.2280°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 US Forest Service.
Can I camp near ?
Yes, Forks Campground is located nearby (2.4 miles away).
What minerals are in the water at ?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.9 (slightly alkaline).
Is it safe to soak at ?
No, not at the source. The water at reaches 149°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