Hot Spring

Clark County, Nevada · Near Boulder City
35.9440°N, 114.7310°W · 670 ft
78°F 77°F air · Good soaking weather 670 ft Open Hike National Park Service

Several thermal points inside Lake Mead National Recreation Area carry the bare name Hot Spring, and this is one of them. It is in Clark County about thirteen miles from Boulder City, on National Park Service land with open access. You reach it on foot. The water is warm, high seventies, pleasant in a desert winter. Chemistry on file dates from January 1976.

Location

The approach is a hike of a bit over two miles, starting at a road the record leaves unnamed, down at 670 feet in low desert. Snow does not fall here in any average year. Five inches of rain is a typical twelve months and the mean temperature is in the mid-seventies, so summer will be hot. There is no photo and no description of the spring where it surfaces.

Winter, December into February, is the season on record and the one that makes sense for a low-desert hike. Access is open, land is Park Service. The record shows no fee and no campground, though Lake Mead NRA is a managed unit and the park's rules apply. Temperature and pH come from 1976, so half a century old.

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 Hot Spring.

Aerial view of the ground around Hot Spring LiDAR bare-earth view of the same ground around Hot 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
533 ft above the spring
Within a quarter mile, to the west
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
110 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 60% 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
53°
Jan
58°
Feb
67°
Mar
74°
Apr
82°
May
95°
Jun
98°
Jul
97°
Aug
89°
Sep
76°
Oct
63°
Nov
52°
Dec
Annual Precip: 5.4 in Annual Snow: 0.3 in
Best Time to Visit
December Air 52°F · Water 78°F · +26° contrast
January Air 53°F · Water 78°F · +25° contrast
February Air 58°F · Water 78°F · +20° contrast
December offers 46°F more contrast than July
Current Conditions
77°F
Clear N 0.0 mph 26% Good soaking weather
Tuesday 100° Low 83° Sunny 1% precip
Wednesday 99° Low 84° Sunny
Thursday 100° Low 81° Sunny 2% precip
Friday 100° Low 78° Sunny
Saturday 101° Low 77° Sunny 1% precip
Water Chemistry Sampled 1976-01-15

The water at Hot Spring is slightly alkaline (pH 7.6). It is notably rich in chloride (natural antiseptic with skin health benefits).

pH 7.6 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 37 mg/L
May support bone density and joint health
Magnesium 7 mg/L
Known for muscle relaxation and stress relief
Sodium 160 mg/L
Supports circulation and skin hydration
Sulfate 180 mg/L
Traditionally used for skin conditions and inflammation
Chloride 180 mg/L
Natural antiseptic with skin health benefits
Where to Stay

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Temperature
78°F
Warm Hot Boiling
Water Temp 78°F (26°C)
Avg Air Temp 75°F
Above Ambient +3°F
Mild soaking conditions September
Access
Open
Road Access Hike
Distance to Road 2.2 mi
Land
Ownership Federal
Agency National Park Service
Designation National Recreation Area
Unit Lake Mead National Recreation Area
Manager National Park Service
Protection 2 - Permanent protection, some use allowed

Hike 1 waterfall near Hot Spring

Looking for more outdoor adventures? Explore waterfall hikes near Hot Spring, Nevada.

Frequently Asked Questions
What is the water temperature at Hot Spring?
Hot Spring has a water temperature of 78°F (26°C). This is a warm thermal spring.
Where is Hot Spring located?
Hot Spring is located in Clark County, Nevada at 670 feet elevation, near Boulder City. Coordinates: 35.9440°N, 114.7310°W.
How do I get to Hot Spring?
Hot Spring has Hike road access (2.2 mi from the road).
Is Hot Spring free to visit?
Hot Spring has Open access. It is managed by National Park Service.
What minerals are in the water at Hot Spring?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.6 (slightly alkaline).