Little Warm Spring

Sublette County, Wyoming · Near Pinedale
43.5200°N, 109.6690°W · 7,403 ft
77°F 7,403 ft Roadside Camping nearby (17.2 mi)

Little Warm Spring discharges at 77 degrees Fahrenheit just 42 meters from Three Spear Ranch Access Road at 7,403 feet elevation. The spring runs 41 degrees above the 35.8-degree ambient temperature in terrain receiving 103 inches of annual snow.

Location

The thermal feature sits in upper Green River valley ranchland where precipitation totals 21 inches annually. The roadside location places the spring in working private property, surrounded by irrigated hay meadows and seasonal cattle range at the interface between valley bottom and mountain slopes.

Access crosses private property requiring landowner permission. The roadside location presents no technical challenges if permission granted. Green River Lakes Lodge, 27.7 kilometers north, offers day-use and overnight rental. Winter access becomes impassable when snow closes valley roads, typically November through May.

History of Little Warm Spring

Documentation of historical development remains sparse. The spring likely provided water for early ranching operations in this remote valley, though commercial thermal exploitation never occurred. Current status involves private land with limited historical record available.

Monthly Climate
16°
Jan
17°
Feb
25°
Mar
31°
Apr
40°
May
54°
Jun
62°
Jul
61°
Aug
51°
Sep
36°
Oct
23°
Nov
14°
Dec
Annual Precip: 21.5 in Annual Snow: 103.9 in
Best Time to Visit
December Air 14°F · Water 77°F · +63° contrast
January Air 16°F · Water 77°F · +61° contrast
February Air 17°F · Water 77°F · +61° contrast
December offers 48°F more contrast than July
Current Conditions
37°F
Rain 87% Good soaking weather
Thursday 55° Low 36° Isolated Rain Showers then Isolated Showers And Thunderstorms 24% precip
Spring is +22° warmer
Friday 60° Low 37° Mostly Sunny
Spring is +17° warmer
Saturday 56° Low 41° Sunny 9% precip
Spring is +21° warmer
Sunday 64° Low 37° Sunny
Spring is +13° warmer
Monday 69° Low 43° Sunny
Spring is +8° warmer
Where to Stay

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Nearby Camping
Green River Lake Lodge 17.2 mi away

Overview The Green River Lakes Lodge is located 50 miles north of Pinedale, Wyoming. The lodge is available as a rental for day use events such as weddings, family reunions, or meetings for up to 50 guests, or as an overnight rental for smaller groups of up to 12 guests. Recreation During the summer months, hiking and horseback riding into the Bridger Wilderness and Wind River Range are popular activities enjoyed by visitors to the area. The lake is open to small watercraft only, making it...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 7,403 ft

Little Warm Spring sits at 7,403 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 30% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
77°F
Warm Hot Boiling
Water Temp 77°F (25°C)
Avg Air Temp 36°F
Above Ambient +41°F
Good soaking conditions May
Access
Road Access Roadside
Nearest Road Three Spear Ranch Access Road (Private)
Distance to Road 140 ft
Frequently Asked Questions
What is the water temperature at Little Warm Spring?
Little Warm Spring has a water temperature of 77°F (25°C). This is a warm thermal spring.
Where is Little Warm Spring located?
Little Warm Spring is located in Sublette County, Wyoming at 7,403 feet elevation, near Pinedale. Coordinates: 43.5200°N, 109.6690°W.
How do I get to Little Warm Spring?
Little Warm Spring has Roadside road access, with the nearest road being Three Spear Ranch Access Road (Private) (140 ft from the road).
Can I camp near Little Warm Spring?
Yes, Green River Lake Lodge is located nearby (17.2 miles away).
Is it safe to soak at Little Warm Spring?
Little Warm 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 Little Warm Spring crowded?
Little Warm 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 Little Warm Spring?
Essentials for Little Warm Spring: swimsuit, towel, water bottle, warm layers for before and after soaking, camping gear, a trash bag to pack out what you pack in.