Spring

Grant County, New Mexico · Near Arenas Valley
33.2330°N, 108.2350°W · 5,743 ft
149°F 64°F air · Good soaking weather 5,743 ft Restricted Short Walk SFW Camping nearby (3.8 mi)
Very Hot Source, Use Extreme Caution

At 149°F, the source water at 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.

An unnamed thermal point inside the Heart Bar Wildlife Management Area, state fish and wildlife ground in Grant County, about thirty-two miles from Arenas Valley. The water comes out scalding, hot enough to injure on contact. The access status is restricted. Someone has photographed it. Between the temperature and the land status, this entry reads as a place to know about and stay out of.

Location

The approach is a walk of a bit over half a mile from an unnamed road. The land designation is State Conservation Area. Elevation is moderate foothill country. Snow comes in moderate quantity most winters. Rainfall is modest, and the average temperature is mild. Forks Campground is about four miles off, the nearest on file.

Scalding water and restricted access. Contact the state wildlife agency that runs Heart Bar before going anywhere near it. December to February is the window on file. The chemistry and temperature come from a 1962 sample and show moderately mineralized water with iron. Forks Campground is the nearest place to camp on record.

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 Spring.

Aerial view of the ground around Spring LiDAR bare-earth view of the same ground around 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
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
357 ft above the spring
Within a quarter mile, to the north
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
108 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
42°
Feb
50°
Mar
57°
Apr
64°
May
76°
Jun
75°
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 149°F · +112° contrast
December Air 38°F · Water 149°F · +111° contrast
February Air 42°F · Water 149°F · +107° contrast
January offers 39°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 1962-07-24

The water at 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
Where to Stay

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Nearby Camping
Forks Campground 3.8 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 5,743 ft

Spring sits at 5,743 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
Restricted
Road Access Short Walk
Distance to Road 0.6 mi
Land
Ownership State
Agency SFW
Designation State Conservation Area
Unit Heart Bar Wildlife Management Area
Manager SFW
Protection 2 - Permanent protection, some use allowed

Hike 1 waterfall near Spring

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

Frequently Asked Questions
What is the water temperature at Spring?
Spring has a water temperature of 149°F (65°C). This is considered a hot spring, well above body temperature.
Where is Spring located?
Spring is located in Grant County, New Mexico at 5,743 feet elevation, near Arenas Valley. Coordinates: 33.2330°N, 108.2350°W.
How do I get to Spring?
Spring has Short Walk road access (0.6 mi from the road).
Is Spring free to visit?
Spring has Restricted access. It is managed by SFW.
Can I camp near Spring?
Yes, Forks Campground is located nearby (3.8 miles away).
What minerals are in the water at Spring?
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.
Is it safe to soak at Spring?
No, not at the source. The water at Spring 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, Wikipedia