# De Maris Springs, Wyoming

De Maris Springs in Wyoming. 97°F (36°C). Roadside. Park County.

- Page: https://www.soakingsprings.com/hot-springs/wyoming/de-maris-springs
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at De Maris Springs?

The water leaves the ground at 97°F, a comfortable soaking temperature. 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 | 97°F (36°C) (USGS record; developed pools are often cooled) |
| pH | 7.0 (Neutral) |
| Total dissolved solids | 1,400 mg/L |
| Elevation | 4,934 ft |
| Access | Roadside, 195 ft from the nearest road |
| County | Park County |
| Nearest town | Cody |
| Coordinates | 44.51300, -109.11500 |
| Best months to soak | February, December, January (largest gap between water and average air temperature) |
| Nearest campground | Hogan and Luce Campground, 20.3 mi |

## About De Maris Springs

De Maris Springs comes up near Cody, Wyoming, three miles from town in Park County, in the thermal ground Wikipedia describes as Colter's Hell. The water is close to body temperature, a soaking temperature. Neither ownership nor public access is recorded. The mineral load is heavy by the 1970 sample, the last chemistry on file.

Under two hundred feet from the nearest road, and the road itself is unnamed in what we have. Elevation is a shade under five thousand feet, a dry basin where precipitation comes to less than a foot and a half a year and snowfall to around four feet. No land unit is listed. Camping is far: Hogan and Luce Campground, twenty miles out.

The Wikipedia page attached to this record is for Colter's Hell, a square mile of fumaroles and hot springs at the mouth of the Shoshone River's canyon near Cody. John Colter, who left the Lewis and Clark Expedition before it finished, came through in the winter of 1807 to 1808 and described the place; its thermal activity has faded since. The USGS also lists De Maris as a sampled site.

Nothing on file says you may go here, so find the owner before you try. The temperature is a comfortable soak if you do get in, no burn risk. Winter is the season the record favors. The chemistry figures are from 1970 and the dissolved solids are high, so the water is heavily mineralized by that measure.

## Water chemistry

Lab sample from 1970-08-14 (Water Quality Portal).

| Measure | Value |
|---|---|
| pH | 7 |
| Total dissolved solids | 1,400 mg/L |
| Calcium | 322 mg/L |
| Magnesium | 66 mg/L |
| Sodium | 30 mg/L |
| Sulfate | 402 mg/L |
| Chloride | 16 mg/L |

Records this spring holds:
- Tied for most minerals of Wyoming's 7 springs with a dissolved minerals reading: 1,400 mg/L

## Nearby

- Nearest city page: [Hot springs near Cody](https://www.soakingsprings.com/hot-springs/near/wyoming/cody), 4 mi away
- State page: [Hot springs in Wyoming](https://www.soakingsprings.com/hot-springs/wyoming)
- [Shoshone Hot Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/shoshone-hot-springs): 95°F source, pH 7.0, TDS 1,400 mg/L, Roadside, near Cody, Park County
- [Needle Hot Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/needle-hot-springs): 75°F source, pH 7.0, TDS 1,400 mg/L, Roadside, near Cody, Park County
- [Buffalo Bill Reservoir Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/buffalo-bill-reservoir-springs-1): Warm, Short Walk, near Cody, Park County
- [Buffalo Bill Reservoir Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/buffalo-bill-reservoir-springs-3): Warm, Short Walk, near Cody, Park County
- [Buffalo Bill Reservoir Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/buffalo-bill-reservoir-springs-2): Warm, Short Walk, near Cody, Park County
- [Hot Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/hot-springs-carbon-county-2): Warm, Backcountry, near Red Lodge, Carbon County

## Questions

**What is the water temperature at De Maris Springs?**
De Maris Springs has a water temperature of 97°F (36°C). This is a warm thermal spring.

**Where is De Maris Springs located?**
De Maris Springs is located in Park County, Wyoming at 4,934 feet elevation, near Cody. Coordinates: 44.5130°N, 109.1150°W.

**How do I get to De Maris Springs?**
De Maris Springs has Roadside road access (195 ft from the road).

**Can I camp near De Maris Springs?**
Yes, Hogan And Luce Campground is located nearby (20.3 miles away).

**What minerals are in the water at De Maris Springs?**
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.0 (neutral). Total dissolved solids measure 1,400 mg/L.

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals
- https://en.wikipedia.org/wiki/Colter's_Hell