Rainbow Spring

McKinley County, New Mexico · Near Zuni Pueblo
34.9120°N, 108.9510°W · 6,315 ft
71°F 63°F air · Good soaking weather 6,315 ft Unknown Roadside DESG
Aerial view of the ground around Rainbow Spring LiDAR bare-earth view of the same ground around Rainbow 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.

Rainbow Spring is on the Zuni Reservation in McKinley County, twelve miles from Zuni Pueblo, off Ojo Caliente Road. Tepid, low seventies. Tribal land, access unknown. It was sampled in March 2023, which is recent for a thermal record, and the water came back near neutral with the common suite: calcium, magnesium, sodium, sulfate, chloride.

Location

Ojo Caliente Road runs about 250 feet away, at 6,300 feet with a fair amount of winter snow, eighteen inches or so, in a dry year. The Zuni tribe owns the land. No one has written up what the outlet looks like. The climate average is cool, and the road is the one named feature near it.

Ask the Zuni tribe about access; tribal land means their rules. The winter months are the rated ones; snow may affect the road. No campground listed. The temperature is too low for a soak, so the reason to care is the recent sample, which is unusual.

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 Rainbow Spring.

Setting
Gentle slope
The ground tilts gently up to the south.
Highest ground nearby
94 ft above the spring
Within a quarter mile, to the south
Cross-section through the spring

A slice through the ground from south to north, about 0.6 miles end to end.

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

Heat Below
84 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 21% 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
37°
Feb
46°
Mar
53°
Apr
61°
May
75°
Jun
76°
Jul
74°
Aug
67°
Sep
56°
Oct
43°
Nov
32°
Dec
Annual Precip: 9.8 in Annual Snow: 18.0 in
Best Time to Visit
January Air 31°F · Water 71°F · +41° contrast
December Air 32°F · Water 71°F · +39° contrast
February Air 37°F · Water 71°F · +34° contrast
January offers 46°F more contrast than July
Current Conditions
63°F
Mostly Cloudy WSW 12.4 mph 77% Good soaking weather
Today 75° Low 54° Slight Chance Rain Showers then Chance Showers And Thunderstorms 34% precip
Wednesday 73° Low 52° Showers And Thunderstorms 81% precip
Thursday 75° Low 50° Showers And Thunderstorms Likely 69% precip
Friday 77° Low 50° Mostly Sunny then Chance Showers And Thunderstorms 31% precip
Saturday 77° Low 49° Sunny 12% precip
Water Chemistry Sampled 2023-03-07

The water at Rainbow Spring is slightly alkaline (pH 7.3). It is notably rich in calcium (may support bone density and joint health), magnesium (known for muscle relaxation and stress relief), and sulfate (traditionally used for skin conditions and inflammation).

pH 7.3 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 140 mg/L
May support bone density and joint health
Magnesium 41 mg/L
Known for muscle relaxation and stress relief
Sodium 54 mg/L
Supports circulation and skin hydration
Sulfate 310 mg/L
Traditionally used for skin conditions and inflammation
Chloride 32 mg/L
Natural antiseptic with skin health benefits
Mile-High Advisory 6,315 ft

Rainbow Spring sits at 6,315 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 25% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
71°F
Warm Hot Boiling
Water Temp 71°F (22°C)
Avg Air Temp 54°F
Above Ambient +17°F
Mild soaking conditions September
Access
Unknown
Road Access Roadside
Nearest Road Ojo Caliente Road
Distance to Road 247 ft
Land
Ownership DESG
Agency DESG
Designation Tribal Land
Unit Zuni Reservation
Manager TRIB
Protection 4 - No known protection
Frequently Asked Questions
What is the water temperature at Rainbow Spring?
Rainbow Spring has a water temperature of 71°F (22°C). This is a warm thermal spring.
Where is Rainbow Spring located?
Rainbow Spring is located in McKinley County, New Mexico at 6,315 feet elevation, near Zuni Pueblo. Coordinates: 34.9120°N, 108.9510°W.
How do I get to Rainbow Spring?
Rainbow Spring has Roadside road access, with the nearest road being Ojo Caliente Road (247 ft from the road).
Is Rainbow Spring free to visit?
Rainbow Spring has Unknown access. It is managed by DESG.
What minerals are in the water at Rainbow Spring?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.3 (slightly alkaline).
Sources: USGS NWIS