Beaverhead Rock Spring

Beaverhead County, Montana · Near Dillon
45.3920°N, 112.4520°W · 4,813 ft
81°F 4,813 ft Roadside Camping nearby (19.6 mi)

Beaverhead Rock Spring emerges at 81°F at 4,813 feet elevation in Beaverhead County, Montana, running 38 degrees above the local annual air temperature -- a substantial thermal anomaly for a roadside spring. Only 14.5 meters from the nearest road, it requires no walking to reach.

Location

The spring surfaces near Beaverhead Rock, the massive limestone cliff formation rising above the Beaverhead River valley between Dillon and Twin Bridges. The surrounding landscape is high-desert sagebrush steppe with irrigated hay meadows along the river bottom. Annual precipitation is just 12.7 inches with 37 inches of snow, reflecting the rain shadow east of the Continental Divide. The Beaverhead River, a renowned trout fishery, flows nearby through a broad, open valley framed by the Pioneer and Ruby mountain ranges.

The spring is accessible year-round from the road with no walking required. Dillon, 15 miles south, provides full services including lodging and supplies. Summer temperatures in this semi-arid valley can exceed 90°F while winter lows drop well below zero. Birch Creek Cabin, the nearest reservable Forest Service accommodation, sits 31.5 km away. The Beaverhead River offers blue-ribbon fly fishing within easy driving distance. Sunscreen and wind protection are advisable in this exposed landscape.

History of Beaverhead Rock Spring

Beaverhead Rock is the landmark Sacagawea recognized during the Lewis and Clark Expedition in August 1805, confirming the Corps of Discovery was nearing Shoshone territory. The spring itself carries no separate documented development history and appears in the 1980 NOAA/NCEI inventory as an undeveloped thermal feature. The area has been ranching country since the 1860s, and the spring likely served as a stock-watering source for generations.

Monthly Climate
19°
Jan
22°
Feb
32°
Mar
41°
Apr
51°
May
61°
Jun
71°
Jul
70°
Aug
59°
Sep
44°
Oct
30°
Nov
19°
Dec
Annual Precip: 12.7 in Annual Snow: 37.3 in
Best Time to Visit
December Air 19°F · Water 81°F · +63° contrast
January Air 19°F · Water 81°F · +62° contrast
February Air 22°F · Water 81°F · +59° contrast
December offers 53°F more contrast than July
Current Conditions
51°F
WSW 18.0 mph 60% Good soaking weather
Thursday 71° Low 42° Mostly Sunny 2% precip
Spring is +10° warmer
Friday 73° Low 38° Partly Sunny
Spring is +8° warmer
Saturday 71° Low 41° Sunny 1% precip
Spring is +10° warmer
Sunday 82° Low 39° Mostly Sunny
Monday 80° Low 45° Sunny
Spring is +1° warmer
Where to Stay

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Nearby Camping
Birch Creek Cabin 19.6 mi away

Overview Birch Creek Cabin is a historic log cabin with electricity. It provides access to a variety of hiking, ohv, and for cross-country skiing and snowshoe trails (depending on the season). A vaulted toilet lies 100' west of the cabin. Guests can typically access the cabin by vehicle, depending on conditions. The roads leading to the cabin are gravel - but suitable for passenger cars (depending on the season and snow levels). The final quarter-mile may be covered with impassible snow d...

Reservable Yes
Reserve on Recreation.gov →
Temperature
81°F
Warm Hot Boiling
Water Temp 81°F (27°C)
Avg Air Temp 43°F
Above Ambient +38°F
Mild soaking conditions May
Access
Road Access Roadside
Distance to Road 48 ft
Frequently Asked Questions
What is the water temperature at Beaverhead Rock Spring?
Beaverhead Rock Spring has a water temperature of 81°F (27°C). This is a warm thermal spring.
Where is Beaverhead Rock Spring located?
Beaverhead Rock Spring is located in Beaverhead County, Montana at 4,813 feet elevation, near Dillon. Coordinates: 45.3920°N, 112.4520°W.
How do I get to Beaverhead Rock Spring?
Beaverhead Rock Spring has Roadside road access (48 ft from the road).
Can I camp near Beaverhead Rock Spring?
Yes, Birch Creek Cabin is located nearby (19.6 miles away).
Is it safe to soak at Beaverhead Rock Spring?
Beaverhead Rock Spring is generally safe for soaking at its recorded temperature. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Beaverhead Rock Spring crowded?
Beaverhead Rock Spring is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to Beaverhead Rock Spring?
Essentials for Beaverhead Rock Spring: swimsuit, towel, water bottle, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in.