Mosley Spring

Eddy County, New Mexico · Near Carlsbad
32.2480°N, 104.4110°W · 3,802 ft
68°F 72°F air · Good soaking weather 3,802 ft Roadside Camping nearby (8.9 mi)
Aerial view of the ground around Mosley Spring LiDAR bare-earth view of the same ground around Mosley 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.

Off Dark Canyon Road in Eddy County, around fifteen miles from Carlsbad, Mosley Spring comes up barely warm. Upper sixties. That is swimming hole temperature on a hot day and nothing more. Access is unrecorded. A 1949 sample showed a moderate mineral load of calcium, magnesium, sulfate and chloride, and nothing has been run since.

Location

Dark Canyon Road passes within a hundred feet. Low desert under 4,000 feet, hot through the summer and dry all year. Snow hardly ever. Owner and unit are missing. Sunset Reef Campground is about nine miles off. Rain is scarce. Dark Canyon Road is the only named feature on file, and the road class says you can see it from the car.

Camping on record: Sunset Reef, nine miles. The sample is old, 1949. Confirm land ownership before stopping, because the road frontage belongs to someone. Midwinter is when the low desert is bearable. There is no reason to expect a soak at this temperature, so think of it as a landmark and a data point.

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 Mosley Spring.

Setting
Gentle slope
The ground tilts gently up to the south.
Highest ground nearby
156 ft above the spring
Within a quarter mile, to the south
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
58 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 0% 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
45°
Jan
50°
Feb
59°
Mar
67°
Apr
73°
May
83°
Jun
84°
Jul
83°
Aug
75°
Sep
65°
Oct
54°
Nov
46°
Dec
Annual Precip: 11.1 in Annual Snow: 5.0 in
Best Time to Visit
January Air 45°F · Water 68°F · +23° contrast
December Air 46°F · Water 68°F · +22° contrast
February Air 50°F · Water 68°F · +18° contrast
January offers 39°F more contrast than July
Current Conditions
72°F
Clear N 0.0 mph 78% Good soaking weather
Today 97° Low 71° Mostly Sunny then Scattered Showers And Thunderstorms 29% precip
Wednesday 93° Low 70° Mostly Sunny then Isolated Showers And Thunderstorms 24% precip
Thursday 92° Low 70° Mostly Sunny 5% precip
Friday 93° Low 69° Mostly Sunny then Chance Showers And Thunderstorms 28% precip
Saturday 90° Low 66° Mostly Sunny then Chance Showers And Thunderstorms 50% precip
Water Chemistry Sampled 1949-05-01

The water at Mosley Spring contains 519 mg/L total dissolved solids. It is notably rich in magnesium (known for muscle relaxation and stress relief).

Higher mineral concentration for therapeutic soaking
Calcium 92 mg/L
May support bone density and joint health
Magnesium 50 mg/L
Known for muscle relaxation and stress relief
Sulfate 188 mg/L
Traditionally used for skin conditions and inflammation
Chloride 15 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Sunset Reef Campground 8.9 mi away

Sunset Reef Campground is a reclaimed well pad with 11 developed campsites; five RV spaces and six tent sites. Each site has a shaded picnic table, fire pit and grill for your camping convenience with a vault toilet on site. Visitors can dry camp at this campground for a maximum of five nights for free. If on the hunt for a great place to camp while exploring the two national parks in the area, this is the place to stay! Carlsbad Caverns is a 25-minute drive (14 miles) to the north and Guada...

Fee No fees.
Stay limit 5 nights maximum.
Reserve on Recreation.gov →
Temperature
68°F
Warm Hot Boiling
Water Temp 68°F (20°C)
Avg Air Temp 65°F
Above Ambient +3°F
Mild soaking conditions September
Access
Road Access Roadside
Nearest Road Dark Canyon Road
Distance to Road 88 ft
Frequently Asked Questions
What is the water temperature at Mosley Spring?
Mosley Spring has a water temperature of 68°F (20°C). This is a warm thermal spring.
Where is Mosley Spring located?
Mosley Spring is located in Eddy County, New Mexico at 3,802 feet elevation, near Carlsbad. Coordinates: 32.2480°N, 104.4110°W.
How do I get to Mosley Spring?
Mosley Spring has Roadside road access, with the nearest road being Dark Canyon Road (88 ft from the road).
Can I camp near Mosley Spring?
Yes, Sunset Reef Campground is located nearby (8.9 miles away). No fees..
What minerals are in the water at Mosley Spring?
Water chemistry analysis shows the presence of Total Dissolved Solids, Calcium, Magnesium, Sulfate, Chloride. Total dissolved solids measure 519 mg/L.
Sources: USGS NWIS