# Poulsen Spring (Salt), Utah

Poulsen Spring (Salt) in Utah. 72°F (22°C). Roadside. Box Elder County.

- Page: https://www.soakingsprings.com/hot-springs/utah/poulsen-spring-salt
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Poulsen Spring (Salt)?

The water leaves the ground at 72°F, about as warm as a heated pool. You can drive right up to it. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 72°F (22°C) (USGS record; developed pools are often cooled) |
| pH | 7.7 (Slightly Alkaline) |
| Total dissolved solids | 3,750 mg/L |
| Elevation | 4,250 ft |
| Access | Roadside, 18 ft from the nearest road (South East Promontory Road) |
| County | Box Elder County |
| Nearest town | Tremonton |
| Coordinates | 41.44900, -112.44200 |
| Best months to soak | January, December, February (largest gap between water and average air temperature) |

## About Poulsen Spring (Salt)

Poulsen Spring, the one with Salt in parentheses on the record, is a warm, salty spring in Box Elder County about 23 miles from Tremonton. Lukewarm water, heavy with dissolved solids. It sits on South East Promontory Road, close enough that the road distance on file is a handful of feet. Ownership is not recorded.

Low country at about 4,250 feet along the Promontory road, with a climate that is dry in summer and sees a couple of feet of snow through winter. The spring is right at the roadside. There is no land owner, unit, or designation in the record, and no campground listed.

Winter is the listed season. The 1966 sample showed a very high mineral load, which fits the Salt in the name; the reading is old and may not hold. With the spring this close to a public road, looking is easy, though access onto the ground is unrecorded. No fee on file, no camping on file.

## Water chemistry

Lab sample from 1966-03-23 (Water Quality Portal).

| Measure | Value |
|---|---|
| pH | 7.7 |
| Total dissolved solids | 3,750 mg/L |
| Calcium | 92 mg/L |
| Magnesium | 54 mg/L |
| Sodium | 1,180 mg/L |
| Sulfate | 176 mg/L |
| Chloride | 1,950 mg/L |

## Nearby

- Nearest city page: [Hot springs near Brigham City](https://www.soakingsprings.com/hot-springs/near/utah/brigham-city), 21 mi away
- State page: [Hot springs in Utah](https://www.soakingsprings.com/hot-springs/utah)
- [Unnamed thermal spring, UT](https://www.soakingsprings.com/hot-springs/utah/unnamed-spring-weber-county): 77°F source, TDS 24,900 mg/L, Short Walk, near Plain City, Weber County
- [Little Mountain Hot Spring, UT](https://www.soakingsprings.com/hot-springs/utah/little-mountain-hot-spring): 108°F source, Roadside, near Elwood, Box Elder County
- [Stinking Hot Springs, UT](https://www.soakingsprings.com/hot-springs/utah/stinking-hot-springs): 118°F source, pH 6.3, TDS 33,800 mg/L, Short Walk, near Elwood, Box Elder County
- [Compton Spring, UT](https://www.soakingsprings.com/hot-springs/utah/compton-spring): 72°F source, pH 7.5, TDS 1,520 mg/L, Short Walk, near Hooper, Weber County
- [Springs, UT](https://www.soakingsprings.com/hot-springs/utah/springs-box-elder-county): 72°F source, Roadside, near Tremonton, Box Elder County
- [Bothwell Warm Springs, UT](https://www.soakingsprings.com/hot-springs/utah/bothwell-warm-springs): 75°F source, pH 8.1, TDS 1,990 mg/L, Short Walk, near Tremonton, Box Elder County

## Questions

**What is the water temperature at Poulsen Spring (Salt)?**
Poulsen Spring (Salt) has a water temperature of 72°F (22°C). This is a warm thermal spring.

**Where is Poulsen Spring (Salt) located?**
Poulsen Spring (Salt) is located in Box Elder County, Utah at 4,250 feet elevation, near Tremonton. Coordinates: 41.4490°N, 112.4420°W.

**How do I get to Poulsen Spring (Salt)?**
Poulsen Spring (Salt) has Roadside road access, with the nearest road being South East Promontory Road (18 ft from the road).

**What minerals are in the water at Poulsen Spring (Salt)?**
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.7 (slightly alkaline). Total dissolved solids measure 3,750 mg/L.

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals