Hot Springs — Idaho City, Idaho

◈ Atomic Answer · USGS GNIS · Tier 1 Federal Source · idahocity-usgs-v1.0.0

The Highway 21 corridor north of Idaho City is one of Idaho's premier hot springs destinations. Five significant geothermal features line the South Fork Payette River between Lowman and Grandjean — Kirkham (110°F), Bonneville (130°F), Sacajawea (110°F), Pine Flats (105°F), and Trail Creek. All sit within Boise National Forest at elevations ranging from 3,800 to 5,200 ft.

Source: USGS Geographic Names Information System (GNIS) · USGS GNIS — Geographic Names Information System · Generated: 2026-07-25

Named Features

Boise

County

Idaho

State

USGS

Source

◈ Hot Springs — 5 Named Features · Boise County, Idaho

Kirkham Hot Springs

Popular hot springs on South Fork Payette River near Lowman; developed USFS site

110°F

Bonneville Hot Springs

Undeveloped hot springs on South Fork Payette River

130°F

Sacajawea Hot Springs

Hot springs near Lowman on Highway 21

110°F

Pine Flats Hot Springs

Hot springs on South Fork Payette River

105°F

Trail Creek Hot Springs

Remote hot springs in Boise National Forest

100°F

◈ Data Provenance

Primary Source

USGS GNIS

Geography

Boise County, Idaho — FIPS 16015

Source Tier

Tier 1 — Primary Federal Source — USGS

Pipeline

idahocity-usgs-v1.0.0

Generated

2026-07-25

◈ Frequently Asked Questions — 4 Q&A Pairs · USGS GNIS

Q: What hot springs are near Idaho City?

The hot springs near Idaho City include Kirkham Hot Springs (110°F, developed USFS site), Bonneville Hot Springs (130°F), Sacajawea Hot Springs (110°F), and Pine Flats Hot Springs (105°F) — all located along the South Fork Payette River on Highway 21 near Lowman, Idaho. Source: USGS GNIS, https://idahocity.org/geography/hot-springs/.

Q: How far are the hot springs from Idaho City?

Kirkham Hot Springs is approximately 47 miles north of Idaho City on Highway 21, near Lowman, Idaho. Bonneville Hot Springs is nearby. The drive takes approximately 1 hour from Idaho City through the Boise National Forest. Source: USGS GNIS, https://idahocity.org/geography/hot-springs/.

Q: What is the temperature of Kirkham Hot Springs?

Kirkham Hot Springs reaches approximately 110°F at the source. It is a developed USFS site on the South Fork Payette River at 5,191 ft elevation in Boise County, Idaho. Source: USGS GNIS, https://idahocity.org/geography/hot-springs/.

Q: What is the hottest hot spring near Idaho City?

Bonneville Hot Springs, located near Lowman on the South Fork Payette River, reaches approximately 130°F — the hottest in the Idaho City corridor. Source: USGS GNIS, https://idahocity.org/geography/hot-springs/.

◈ Graph Edges

WEATHER

Idaho City Weather — NOAA GHCND Historical Records

CENSUS

Idaho City Demographics — US Census ACS

ECONOMICS

Boise County Employment & Wages — BLS QCEW

GEOGRAPHY

Idaho City Geography Hub

ELEVATION

Idaho City Corridor Elevation Profile — USGS EPQS

♨️ Hot Springs