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Every Hot Spring

Bonneville Hot Springs

Bonneville Hot Springs is a primitive, undeveloped hot spring near Lowman in Boise County, Idaho. Water at the source is recorded at 185°F (85°C), hot enough to scald. Records place it on public land. Fees and entry: $5 per vehicle for non-campers.

185°F85°C recorded at the source
Scalding at the source. Do not enter without a cooled, mixed pool.

Bonneville Hot Springs lies along Warm Springs Creek beside the Forest Service's Bonneville Campground, 19 miles east of Lowman just off Highway 21 at 4,700 feet. Non-campers pay a $5 per vehicle fee to use the campground access.

Facts

Coordinates
44.1568, -115.3147 (Google Maps, OSM)
Source temperature
185°F (85°C)
Access
Public land
Type
Primitive (undeveloped)
Fee
$5 per vehicle for non-campers
Clothing optional
Not recorded
Nearest town
Lowman
State
Idaho
Data sources
NOAA NCEI, OpenStreetMap, Wikidata, Official sources (linked below). See sources

Map

Larger marker is Bonneville Hot Springs; smaller markers are other springs within 50 miles.

Quick answers

Can you soak at Bonneville Hot Springs?
Records place Bonneville Hot Springs on public land. That is not a guarantee of current access: closures, fire restrictions and road conditions change, so check with the land manager before you go.
How hot is Bonneville Hot Springs?
The hottest recorded reading at the source is 185°F (85°C). That is the outlet temperature, not a pool temperature; water cools as it flows away from the source. Water this hot can cause serious burns, so test any pool by hand first.
Is Bonneville Hot Springs free?
Fees and entry: $5 per vehicle for non-campers. Fees change, so confirm before you go.
Where is Bonneville Hot Springs?
Bonneville Hot Springs is near Lowman in Boise County, Idaho, at coordinates 44.1568, -115.3147.
What other hot springs are near Bonneville Hot Springs?
The closest listed springs, in straight-line distance, are Sacajawea Hot Springs, 7 mi; Grandjean Hot Spring, 7 mi; and Kirkham Hot Springs, 13 mi.

Before you go

  • Temperatures are measured at the source and can be far hotter than any soaking pool. Test with a hand before stepping in.
  • Access, fees, and road conditions change. Verify with the land manager or owner; "public" here reflects survey records, not a current right of entry.
  • Water in natural springs is untreated. Keep your head above water and avoid soaking with open wounds. Some springs carry Naegleria fowleri risk.
  • Pack out everything, including soap residue. Many springs have been closed because of trash and overcrowding.

Sources

Dataset last rebuilt October 11, 2026. Not yet checked on site by a person. Access, fee, clothing and closure details appear only when a source below states them. How this data is built.

Checked against

  1. USDA Forest Servicefs.usda.gov/r04/boise/recreation/bonneville-campground

Merged from

  1. NOAA NCEI Thermal Springs List (archived 2025): survey location and source temperature, public domain
  2. OpenStreetMap: mapped feature and its tags, ODbL
  3. Wikidata: name, county and website, CC0