Thermo Hot Springs
By the HotSpringsFind editorial team · How we compile records · Reviewed September 2026
Thermo Hot Springs is a primitive hot spring listed near Minersville, Utah. Reported soak temperature: 104°F. See the visit fact sheet.
Current status
Primitive BLM-desert hot spring beside a dirt road in the Escalante Desert ~20 mi southwest of Minersville, near the Thermo geothermal plant; source vents run ~178-185F (far too hot to enter), but visitors have piped flow through a gravity-feed cooling setup into 2-3 metal/stock-tank soaking tubs that hold soakable water when maintained.
Checked March 2026 · inferred — not yet confirmed · 7 sources ↓
Before you go
- Status: Open — last verified below — confirm via BLM — Dominquez Escalante Trail (Utah) official page.
- Cost: Reported free access — fees and permits can change, confirm before visiting.
- Getting there: No verified hike distance on record — confirm the route and road conditions.
- Water: Reported soak temperature 104°F — always test the water before entering.
- Rules: Clothing policy unknown — verify locally; pets reported not allowed — confirm current rules.
- Conditions: check weather, fire closures, and land-manager alerts the week you go — mountain access changes seasonally.
- Reservations/permits: None — BLM public land, dispersed access; no fee.
- Best time to go: Cooler months (Oct-Apr) — summer air temps are punishing in this exposed desert; weekdays see essentially nobody.
- Clothing reality: No posted policy — remote BLM desert site; clothing-optional in practice, rare visitors.
- Cell service: none — download maps and tell someone your plan.
- Accessibility: Short flat walk from where you park beside the dirt road, but ground is uneven volcanic/desert terrain; not wheelchair-suitable.
- Source water is ~178-185F — NEVER touch the source vents or the pond edges; only the piped cooling-tank setup produces soakable water
- Tub condition varies — 2021 report found the soaking tank the right temperature but algae-coated and needing a scrub/refill; tubs may or may not be in place on any given visit
- Remote west-desert location on dirt roads ~20 mi southwest of Minersville (approach from Minersville/Modena side or via Lund on Hwy 19) — no cell service, no water, no services; tell someone your plan
- Signed as a site on the Dominguez-Escalante National Historic Trail (the expedition famously cast lots just south of here on Oct 10, 1776) — look for BLM trail/site signs near the geothermal power plant
- Active geothermal power plant (Cyrq Energy Thermo No. 1) in the same valley — stay clear of plant infrastructure
- Second hot pond downstream has no tubs and steams at scalding temps
- Hazard: Scalding source vents ~178-185F
- Hazard: Unstable hot ground around steam vents and ponds
- Hazard: Remote desert dirt roads — can be rough or impassable when wet; carry water and spare tire
- Hazard: No cell service; nearest services in Milford/Minersville ~20+ mi
About this spring
Historic desert hot springs at the old Thermo settlement west of the Mineral Mountains (mentioned in the 1776 Dominguez-Escalante journal). Scalding vents (~178-181°F — among Utah's hottest) feed small volunteer-built soaking tubs via a cooling pipe. A geothermal power plant operates adjacent. Source near 181°F — never enter vents directly. Remote, no services; test tub temps.
Thermo Hot Springs rises in the Escalante Desert of western Beaver County, roughly 19 miles southwest of Milford near the old Thermo siding, at about 5,045 feet elevation on the basin floor west of the Mineral Mountains. It is among the hottest documented springs in Utah: USGS data list a source around 181°F (a 1967 field measurement read about 170°F), and the slightly alkaline water (pH 7.4) carries roughly 1,490 mg/L of dissolved solids dominated by sulfate, sodium and chloride. The springs have a noted place in exploration history — the Domínguez-Escalante expedition journal recorded hot springs issuing from a small hill in this valley on October 10, 1776.
Because the vents are scalding, soaking is possible only in small volunteer-built tubs supplied through a cooling pipe, and every tub must be temperature-tested before entering. The surrounding Thermo geothermal field has supported a commercial power plant since 2008, tapping a reservoir estimated between 125°C and 189°C. The setting is remote open desert with no services.
Directions & trailhead access
From Minersville/Milford, dirt roads ~15-20 mi southwest into the Escalante Desert toward Thermo — high clearance recommended.
Utah geothermal context
Utah's springs surface along the Wasatch Front fault system and across the western desert basins. Canyon sites like Fifth Water can flash-flood in storms and close under avalanche danger in winter; desert sites like Meadow involve long graded-road approaches through open range. Elevation changes of thousands of feet mean 'the weather' varies wildly by site.
What a primitive site means here
Primitive springs have no facilities: no changing rooms, no trash service, often no maintained road to the pool. Expect natural rock or gravel bottoms, water temperature that varies by spot and season, and other visitors who may treat the site informally. Pack out everything you bring, test the water before entering, and leave the pool cleaner than you found it.
Best time to visit
Year-Round (Best: May – October)Pool temperatures and access can change with weather and season. Outdoor ambient temperatures fluctuate significantly across Utah. Late spring through autumn offers the most comfortable road access.
Fact sheet
| Reported soak temp | 104°F |
|---|---|
| Source temp (historical) | 181°F |
| Trail access | Recorded coordinates — access unverified |
| Access fee | Reported free — verify locally |
| Clothing policy | Unknown — verify locally |
| Pet policy | Reported no pets |
| Geothermal data reference | NOAA Thermal Springs List (1980 archive) |
| Check land status | BLM — Dominquez Escalante Trail (Utah) official page |
Thermo Hot Springs FAQ
Is Thermo Hot Springs open right now?
Primitive BLM-desert hot spring beside a dirt road in the Escalante Desert ~20 mi southwest of Minersville, near the Thermo geothermal plant; source vents run ~178-185F (far too hot to enter), but visitors have piped flow through a gravity-feed cooling setup into 2-3 metal/stock-tank soaking tubs that hold soakable water when maintained. (Status inferred — not yet confirmed, last checked March 2026.)
Is Thermo Hot Springs free?
Thermo Hot Springs is listed as free to access in Beaver County, Utah. Fees and rules change — verify current status with the land manager before visiting.
What temperature is Thermo Hot Springs?
Thermo Hot Springs has a reported soak temperature of 104°F and a historical source temperature of 181°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Thermo Hot Springs clothing optional?
Directory records do not confirm the clothing policy at Thermo Hot Springs — verify current rules before visiting.
How do you access Thermo Hot Springs?
Thermo Hot Springs is on public land — verify current road access, fees and rules with the land manager before visiting.
Sources & references
- BLM — Dominquez Escalante Trail (Utah) official page — official · 2025
- Linda's Brick Barn — Thermo Hot Springs trip report (tubs, algae, source caution) — community · 2021-02
- TheCarlaFoxBlog — Sunday's Road Trip (directions via geothermal plant, signed turnoff) — community · 2020-09
- NevadaHiking.org — Thermo Hot Springs listing — community · 2025
- SoakingSprings.com — Thermo Hot Springs (181F, roadside) — community · 2026-03
- Wikimapia — Thermo Hot Springs (3 piped soaking tubs note) — community · 2015
Additional references for this record; a source link does not guarantee current conditions.
Details above were verified against the named sources on their listed dates — conditions change, so recheck before traveling. · How we verify our data · Report a correction
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