Basset Hot Spring

Boise County County, Idaho · Near Idaho City
43.7180°N, 115.5630°W · 3,680 ft
Hot 3,680 ft Open Hike US Forest Service Camping nearby (2.6 mi)

Basset Hot Spring hides deep in the Boise National Forest, demanding a 1.7-mile hike from Middle Fork Road to reach waters classified simply as "hot." At 3,680 feet elevation, the spring rewards those willing to earn their soak with genuine backcountry solitude.

The trail from Middle Fork Road winds through dense conifer forest along the Middle Fork Boise River drainage. At nearly 3,700 feet, the air carries pine resin and damp earth. Snow buries these mountains under ten feet annually, and the surrounding forest shows the rugged character of central Idaho's roadless country. The spring itself sits in a quiet clearing where the only sounds are moving water and wind through treetops.

History of Basset Hot Spring

Basset Hot Spring rises along the geothermally active Middle Fork Boise River corridor, where deep faults channel heated groundwater to the surface. The Boise National Forest protects this stretch of backcountry under federal management, maintaining open public access while limiting commercial development. Idaho City, the nearest town, was once a gold rush boomtown that exceeded Portland in population during the 1860s.

The 1.7-mile hike from Middle Fork Road requires moderate fitness and route-finding ability. Snow closes access from late fall through spring, with the best window running mid-June through September. Bring drinking water and bear awareness. No developed facilities exist at the spring.

Is Basset Hot Spring worth visiting?

Best for

  • Overnight camping trips
Basset Hot Spring is well suited for overnight camping trips.
Monthly Climate
24°
Jan
27°
Feb
33°
Mar
38°
Apr
49°
May
59°
Jun
70°
Jul
69°
Aug
59°
Sep
44°
Oct
32°
Nov
23°
Dec
Annual Precip: 30.1 in Annual Snow: 122.0 in
Nearby Camping
Ninemeyer Campground 2.6 mi away

Overview:Due to a wildfire, there are no amenities at the campground.  Currently there are no developed campfire rings therefore when Stage 1 fire restrictions area in effect, no fires are permitted.A stay at Ninemeyer Campground enables guests to enjoy all the beauty and recreation offered along the (Middle Fork Boise River Road) Forest Service (FS) Road 268. Weather is usually good from mid-May through late September and is easily accessible by car in good weather, although the road is some...

Reserve on Recreation.gov →
What to Bring
Swimsuit & towel
Water bottle Stay hydrated, especially in hot water
Warm layers Cold air before and after soaking
Camping gear Nearby camping at Ninemeyer Campground
Trash bag Pack out what you pack in
References
USGS Quad: (SHEEP CREEK 7.5) · NOAA: 15.0 · AMS Map: HAILEY
Frequently Asked Questions
What is the water temperature at Basset Hot Spring?
Basset Hot Spring is classified as hot. An exact temperature measurement has not been recorded.
Where is Basset Hot Spring located?
Basset Hot Spring is located in Boise County, Idaho at 3,680 feet elevation, near Idaho City. Coordinates: 43.7180°N, 115.5630°W.
How do I get to Basset Hot Spring?
Basset Hot Spring has Hike road access, with the nearest road being Middle Fork Road (1.7 mi from the road).
Is Basset Hot Spring free to visit?
Basset Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Basset Hot Spring?
Yes, Ninemeyer Campground is located nearby (2.6 miles away).
Is it safe to soak at Basset Hot Spring?
Basset Hot Spring is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Basset Hot Spring crowded?
Basset Hot Spring sees varying levels of visitors depending on the season and day of the week.
What should I bring to Basset Hot Spring?
Essentials for Basset Hot Spring: swimsuit, towel, water bottle, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in.
Temperature
Hot
Warm Hot Boiling
Avg Air Temp 44°F
Access
Open
Road Access Hike
Nearest Road Middle Fork Road
Distance to Road 1.7 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Boise National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use