Big Spring

Clark County, Idaho · Near Dubois
44.4540°N, 112.6960°W · 6,900 ft
73°F 6,900 ft Open Short Walk Bureau of Land Management Camping nearby (23.8 mi)
Aerial view of the ground around Big Spring LiDAR bare-earth view of the same ground around Big Spring
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Big Spring is barely warm. The water comes up in the low seventies, far below a soak, on BLM ground in Clark County, Idaho, about thirty miles from Dubois. Open public land, a short walk from a road. No flow figure is on file, and the record gives no date for the temperature reading.

Location

High and cold, close to seven thousand feet, with an average year in the upper thirties and five-plus feet of snow. Rain is scarce. The BLM's Upper Snake Field Office manages it. The walk from the road, which is unnamed on file, is about five hundred feet. Stoddard Creek Campground is nearly twenty-four miles away, the nearest on record.

Winter tops the list of months, which sits oddly with water this cool and snow that deep. Burns are not a concern. Short walk on public land. No fee is written down. Nobody has run the chemistry and there is no USGS site. Camping is a long way off.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Big Spring.

Setting
Hillside
The spring sits on a steep slope that climbs to the northeast.
Highest ground nearby
261 ft above the spring
Within a quarter mile, to the northeast
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
113 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 64% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
16°
Jan
18°
Feb
26°
Mar
33°
Apr
43°
May
54°
Jun
65°
Jul
63°
Aug
53°
Sep
38°
Oct
25°
Nov
14°
Dec
Annual Precip: 17.0 in Annual Snow: 63.8 in
Best Time to Visit
December Air 14°F · Water 73°F · +59° contrast
January Air 16°F · Water 73°F · +57° contrast
February Air 18°F · Water 73°F · +55° contrast
December offers 50°F more contrast than July
Current Conditions
Tuesday 61° Low 34° Sunny
Spring is +12° warmer
Wednesday 67° Low 39° Sunny then Slight Chance Rain Showers 17% precip
Spring is +6° warmer
Thursday 63° Low 45° Light Rain Likely then Showers And Thunderstorms 80% precip
Spring is +10° warmer
Friday 61° Low 44° Chance Light Rain 33% precip
Spring is +12° warmer
Saturday 63° Low 40° Mostly Sunny then Slight Chance Light Rain 18% precip
Spring is +10° warmer
Nearby Camping
Nearby Camping
Stoddard Creek Campground 23.8 mi away

Overview Stoddard Creek Campground is located just 1 mile off I-15 and 17 miles north of the town of Dubois, Idaho. Visitors come to the area to enjoy the abundance of trails, wildlife viewing opportunities and scenic beauty. Recreation Fishing, hiking, mountain biking, motorcycling and ATV riding are popular activities in the area. The Continental Divide National Scenic Trail can be accessed 8 miles away, where it crosses I-15. Facilities The campground contains one accessible group site tha...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,900 ft

Big Spring sits at 6,900 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 28% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
73°F
Warm Hot Boiling
Water Temp 73°F (23°C)
Avg Air Temp 37°F
Above Ambient +36°F
Mild soaking conditions September
Access
Open
Road Access Short Walk
Distance to Road 0.1 mi
Land
Ownership Federal
Agency Bureau of Land Management
Designation PUB
Unit Upper Snake Field Office
Manager Bureau of Land Management
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Big Spring?
Big Spring has a water temperature of 73°F (23°C). This is a warm thermal spring.
Where is Big Spring located?
Big Spring is located in Clark County, Idaho at 6,900 feet elevation, near Dubois. Coordinates: 44.4540°N, 112.6960°W.
How do I get to Big Spring?
Big Spring has Short Walk road access (0.1 mi from the road).
Is Big Spring free to visit?
Big Spring has Open access. It is managed by Bureau of Land Management.
Can I camp near Big Spring?
Yes, Stoddard Creek Campground is located nearby (23.8 miles away).