Lower Warm Springs

Also known as: Sunrise Pool
Inyo County, California · Near Lone Pine
36.8060°N, 117.7710°W · 1,407 ft
110°F 1,407 ft Open Backcountry National Park Service

Lower Warm Springs, which OpenStreetMap calls Sunrise Pool, is one of the Saline Valley Hot Springs, within Death Valley National Park and deep in the backcountry. The nearest town is Lone Pine, twenty-three miles off. The water is hot, right at the upper limit of comfortable. Public access is Open. OpenStreetMap marks the bath type as hot spring.

Location

Backcountry: the nearest road is nearly six miles away, and no road name is recorded. The elevation is around fourteen hundred feet in the Saline Valley, a desert getting about seven inches of moisture annually, with a mean temperature in the low seventies. National Park Service land. The record lists no campground.

The file marks December through February as the time to come. The water is hot; most people will find it at the top end of what they enjoy. It is park land, so park rules apply. Fee is not recorded and there is no chemistry. The record carries a photo. No USGS site exists for it. Six miles of backcountry is a serious approach in desert heat, and the route is not described anywhere in the record.

History of Lower Warm Springs

Saline Valley Hot Springs, per Wikipedia, are three thermal springs in the remote Saline Valley part of Death Valley National Park. OpenStreetMap gives this one the name Sunrise Pool.

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 Lower Warm Springs.

Aerial view of the ground around Lower Warm Springs LiDAR bare-earth view of the same ground around Lower Warm Springs
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
Open ground
Flat, open ground all around.
Highest ground nearby
28 ft above the spring
Within a quarter mile, to the northeast
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
95 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 39% 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
51°
Jan
56°
Feb
63°
Mar
73°
Apr
80°
May
92°
Jun
96°
Jul
95°
Aug
87°
Sep
74°
Oct
59°
Nov
50°
Dec
Annual Precip: 7.1 in Annual Snow: 7.2 in
Best Time to Visit
December Air 50°F · Water 110°F · +60° contrast
January Air 51°F · Water 110°F · +59° contrast
February Air 56°F · Water 110°F · +55° contrast
December offers 46°F more contrast than July
Where to Stay

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Temperature
110°F
Warm Hot Boiling
Water Temp 110°F (43°C)
Avg Air Temp 73°F
Above Ambient +37°F
Warm air, warm water September
Access
Open
Road Access Backcountry
Distance to Road 5.9 mi
Bath Type Hot spring
Land
Ownership Federal
Agency National Park Service
Designation National Park
Unit Death Valley National Park
Manager National Park Service
Protection 1 - Permanent protection, natural state
Frequently Asked Questions
What is the water temperature at Lower Warm Springs?
Lower Warm Springs has a water temperature of 110°F (43°C). This is considered a hot spring, well above body temperature.
Where is Lower Warm Springs located?
Lower Warm Springs is located in Inyo County, California at 1,407 feet elevation, near Lone Pine. Coordinates: 36.8060°N, 117.7710°W.
How do I get to Lower Warm Springs?
Lower Warm Springs has Backcountry road access (5.9 mi from the road).
Is Lower Warm Springs free to visit?
Lower Warm Springs has Open access. It is managed by National Park Service.