Natural hot spring · Arizona
Lost Man Hot Spring
Mohave County, Arizona · 5.1 miles east of Boulder City, NV
Last updated
- Type
- Natural Natural hot spring
- Water temperature
- Not recorded
- Cost
- Not recorded
- Hours or season
- Not recorded
- Clothing
- Not recorded
- Nearest town
- Boulder City, NV (5 mi / 8 km)
- Coordinates
- Pools or sources
- 2
- Undeveloped source: no staff, no facilities, and no maintained access. Conditions change.
About Lost Man Hot Spring
Lost Man Hot Spring is a natural hot spring in Mohave County, Arizona, about 5.1 miles east of Boulder City, NV. The nearest large city is Henderson, NV, roughly 14 miles away as the crow flies.
We do not have a trustworthy temperature reading for this spring. Water temperature at hot springs can change with the seasons, so always test before you soak.
It is a natural spring with little or no development. Some natural springs have rock pools you can sit in, while others are too hot, too shallow or on land where soaking is not allowed.
The site has 2 mapped pools or sources within about 500 meters of each other.
Map and directions
Red marks Lost Man Hot Spring. Other colored dots are nearby springs in this directory. Coordinates: 35.98553, -114.74165.
Getting there
- Nearest town: Boulder City, NV. The spring is about 5.1 miles (8 km) east of town in a straight line.
- Nearest large city: Henderson, NV, about 14 miles (23 km) in a straight line.
- Planning from a city? See hot springs near Las Vegas, NV.
- Use the directions buttons above for a driving route. Final roads to many springs are unpaved, seasonal or closed in winter, so check road conditions before you go.
Weather forecast
Live forecast for this exact spot from the US National Weather Service.
Hot springs near Lost Man Hot Spring
- Two Mile Hot Spring 86°F
- White Rock Spring 79°F
- Muddy Spring 90°F
- Browns Spring 75°F
- Oatman Warm Springs 91°F
- Tecopa Natural Hot Springs Not recorded
Before you go
- Check the operator, land manager or park website for current hours, fees and closures. Details in any directory can go out of date.
- Pack out everything you bring, including food scraps. Do not use soap in natural pools.
- Keep your head above water. Warm fresh water can carry Naegleria fowleri, a rare but deadly amoeba that enters through the nose.
- Drink water, limit soaks to 10 to 20 minutes at a time in very hot water, and skip alcohol.
- Read our hot spring etiquette guide and safety guide.
Frequently asked questions
Where is Lost Man Hot Spring?
Lost Man Hot Spring is in Mohave County, Arizona, about 5.1 miles east of Boulder City, NV. The GPS coordinates are 35.9855, -114.7417.
Can you soak at Lost Man Hot Spring?
Natural springs vary. Some have pools built by visitors, others are too hot or shallow, and some are on private land or in areas where bathing is banned. Check local rules and test the water before you get in.
What hot springs are near Lost Man Hot Spring?
The closest listed spring is Two Mile Hot Spring, about under 1 mile west. White Rock Spring is about 43 miles away.
What should I bring to a hot spring?
Water to drink, a towel, sandals with grip, a bag to pack out trash, and warm layers for after your soak. At primitive springs bring a headlamp and tell someone where you are going.
Sources and corrections
This listing combines OpenStreetMap, the NOAA NCEI Thermal Springs List. Data last refreshed August 2026. Source 1 Source 2
Visited recently? Send a correction, such as a temperature reading, fee, closure or photo. If you look after this spring and want it removed, see removal requests.