Fish Lake Valley Hot Well

What to expect

Fish Lake Valley Hot Well looks less like a wild spring and more like a remote desert rest stop that happens to have hot water. The story usually told is that drillers looking for oil hit hot water instead. Accounts disagree on the date, and the well was later cased and capped. Today it feeds a heavy, below-ground concrete tub about 12 by 6 feet and around 3 feet deep, with a concrete deck, a low block wall, handrails and a few benches.

The tub holds about 105°F41°C most of the year, a little cooler on cold, windy days. Water pours in steadily, roughly 50 gallons a minute, so it stays clean-feeling and keeps its heat. The overflow runs into a chain of man-made ponds. They have been stocked with goldfish and koi that now live there year-round, and they get cooler the farther you go from the tub, down to around 85°F29°C. On a hot afternoon the ponds are the better place to be. Some people float in them on air mattresses.

The ponds also draw wildlife. In an open valley with very little other surface water, birds and animals come in to drink, and the marshy edges are good for birding at dawn and dusk.

The setting is wide and empty. The White Mountains rise to the west, topped by Boundary Peak at 13,147 feet, the highest point in Nevada. At night, with no towns nearby, the skies are some of the darkest in the country.

Getting there

The well is in western Esmeralda County, about 20 minutes from Dyer on a county-maintained dirt road, and a bit over an hour from Tonopah.

From Tonopah: Head west on US 6/95 for about 46 miles to Coaldale. Turn south on NV-773 and drive about 10.7 miles to NV-264. Turn left onto NV-264 toward Dyer and go about 5.8 miles to the graded dirt road. Follow that road roughly 6.9 miles to a fork, keep left, and the well is about 0.2 miles on.

From Dyer: Allow about 20 minutes on the same dirt road.

The dirt section is rough washboard but most cars manage it when it is dry. After rain or snow it can turn to deep mud, and you should not try it. Phone navigation in this area is known to suggest wrong turns, so carry a paper map or a downloaded offline route and the coordinates.

When to go

The well is open year-round, and there is no gate.

Spring and fall are the best seasons. Days are mild, nights are cold enough to make a 105°F41°C soak feel right, and the road is usually dry.

Summer brings hot days. The tub can feel too warm in the afternoon, and that is when the ponds get used most.

Winter is quiet and often clear, with snow on the White Mountains, but the road is the gamble. A storm can leave it muddy for days.

Timing: The site is popular with ATV riders and RV campers, and weekends can be busy. Midweek is calmer. For stargazing, aim for a trip near a new moon.

Rules and etiquette

• Free use. No admission fee and no camping fee.
• Camp back from the water. Travel Nevada asks people to camp at least 100 feet from the spring.
• No soap in the tub or ponds. The ponds hold fish, and the overflow drains into marsh habitat.
• Fishing. Travel Nevada notes that fishing here is restricted. The valley is habitat for the Fish Lake Valley tui chub, a critically endangered native fish. Leave the fish alone.
• Pack out trash. The county has improved the site, and posted signs warn that continued vandalism, litter, harm to wildlife and loud parties could lead to closure.
• Share the tub. It is the only hot soaking spot here. Take turns when others are waiting.

Facilities

There is a large parking area, primitive campsites, a vault toilet, fire rings, grills and trash cans. Some visitors also report a sink with running water, but it is not drinking water. Bring all the water you need for drinking and cooking.

Where to stay nearby

Most people camp at the well. It is the main reason the site is so popular. If you want a bed, Tonopah is the closest town with motels and full services, a little over an hour away. Dyer is a small ranching community with very limited services. On the California side, Bishop has a full range of lodging, but it sits on the far side of the White Mountains.

Land and development

The ground under the well shows as Bureau of Land Management land on federal maps, and Esmeralda County manages the hot well site. That split matters if you hear rumours about the site changing hands.

There is also geothermal interest in the valley. A Nevada Division of Environmental Protection review dated February 10, 2026 covers a proposed 15-20 MW geothermal power plant by Fish Lake Geothermal LLC, located about 14 miles north of Dyer, with production wells, pipelines and access roads. That project area sits in the township next to the hot well, within a few miles of it. The developer, Open Mountain Energy, describes it as being in final permitting, with construction to follow. If you are planning around a quiet night, check recent visitor reports before you go.

Safety notes

• Water temperature. Well water can change temperature without warning. Test the tub with a hand before getting in, and keep your head above the water.
• Heat and sun. There is little shade. In summer, soak early or late and drink plenty of water.
• Remoteness. Fuel up in Tonopah. Cell service is weak or absent, and help is far away.
• Road. Do not drive the dirt road when it is wet.