Unnamed Thermal Spring

Grant County, New Mexico · Near Arenas Valley
33.2580°N, 108.2330°W · 5,747 ft
94°F 64°F air · Good soaking weather 5,747 ft Open Hike US Forest Service Camping nearby (5.3 mi)
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.

Soaking-warm water in the mid-nineties, within the Gila National Forest, 33 miles from Arenas Valley. This unnamed thermal point is Forest Service land with open access, and a hike of a bit over two miles from the nearest road. A 1962 sample found mild, slightly alkaline water with moderate minerals.

Location

The spring lies near 5,750 feet in forested country, with modest snow most winters and a wetter year than the desert below. The record names no road, only the two-mile-plus hike. Forks Campground, around five miles away, is close enough to serve as a base for a day trip.

Come in the cold months. Allow time for the walk. Camping at Forks Campground is the obvious option. The water was sampled in July 1962: near-neutral, moderate dissolved solids, iron among the minerals. Old numbers. No fee recorded. Nothing on file describes a pool, so sitting in it may or may not be possible.

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
645 ft above the spring
Within a quarter mile, to the northwest
Cross-section through the spring

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.

Heat Below
106 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 55% 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
42°
Feb
50°
Mar
57°
Apr
64°
May
76°
Jun
74°
Jul
73°
Aug
68°
Sep
59°
Oct
47°
Nov
38°
Dec
Annual Precip: 15.3 in Annual Snow: 18.1 in
Best Time to Visit
January Air 37°F · Water 94°F · +57° contrast
December Air 38°F · Water 94°F · +56° contrast
February Air 42°F · Water 94°F · +53° contrast
January offers 39°F more contrast than June
Current Conditions
64°F
Clear WNW 12.1 mph 83% Good soaking weather
Today 78° Low 55° Showers And Thunderstorms Likely 56% precip
Spring is +16° warmer
Wednesday 80° Low 54° Showers And Thunderstorms 92% precip
Spring is +14° warmer
Thursday 81° Low 52° Showers And Thunderstorms Likely 65% precip
Spring is +13° warmer
Friday 83° Low 51° Partly Sunny then Showers And Thunderstorms Likely 59% precip
Spring is +11° warmer
Saturday 83° Low 50° Partly Sunny then Chance Showers And Thunderstorms 39% precip
Spring is +11° warmer
Water Chemistry Sampled 1962-07-24

The water at This spring is slightly alkaline (pH 7.8) with 505 mg/L total dissolved solids. It is notably rich in chloride (natural antiseptic with skin health benefits).

pH 7.8 Slightly Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 16 mg/L
May support bone density and joint health
Magnesium 1 mg/L
Known for muscle relaxation and stress relief
Sulfate 79 mg/L
Traditionally used for skin conditions and inflammation
Chloride 107 mg/L
Natural antiseptic with skin health benefits
Iron 0 µg/L
Iron-rich springs may support circulation
Nearby Camping
Nearby Camping
Forks Campground 5.3 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 5,747 ft

this spring sits at 5,747 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
94°F
Warm Hot Boiling
Water Temp 94°F (34°C)
Avg Air Temp 57°F
Above Ambient +37°F
Mild soaking conditions September
Access
Open
Road Access Hike
Distance to Road 2.3 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 94°F (34°C). This is a warm thermal spring.
Where is located?
is located in Grant County, New Mexico at 5,747 feet elevation, near Arenas Valley. Coordinates: 33.2580°N, 108.2330°W.
How do I get to ?
has Hike road access (2.3 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 (5.3 miles away).
What minerals are in the water at ?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sulfate, Chloride, Iron. The pH is 7.8 (slightly alkaline). Total dissolved solids measure 505 mg/L.
Sources: USGS NWIS