Ponuntpa Springs Group

Gallatin County, Wyoming · Near West Yellowstone
44.6710°N, 110.2900°W · 8,265 ft
180°F 26°F air · Good soaking weather 8,265 ft Open Backcountry National Park Service Camping nearby (15.8 mi)
Very Hot Source, Use Extreme Caution

At 180°F, the source water at Ponuntpa Springs Group is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

Aerial view of the ground around Ponuntpa Springs Group LiDAR bare-earth view of the same ground around Ponuntpa Springs Group
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.

Ponuntpa Springs Group is a cluster of thermal springs deep in the Yellowstone backcountry, in the Gallatin County portion of the park. Scalding. The water on record runs far above anything a body could stand, so this is a feature to look at and give room. West Yellowstone is the town on file as nearest, and the closest pavement is a long way off on foot.

Location

Getting there means leaving the Grand Loop Road and covering six and a half miles or so of park backcountry. The springs sit high, above eight thousand feet, which means a short summer. Snowfall on record is heavy, roughly twelve feet a season, with moderate precipitation the rest of the year. Park Service land throughout, protected as national park.

Backcountry travel in a national park usually means permits, so check with the park before setting out. The three winter months are listed as best, though with the snow on record that only makes sense for skiers. The water is scalding; stay on solid ground and keep pets and kids well back. Tower Fall Campground is the camp on record, around sixteen miles away.

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 Ponuntpa Springs Group.

Setting
Open ground
Flat, open ground all around.
Highest ground nearby
75 ft above the spring
Within a quarter mile, to the north
Cross-section through the spring

A slice through the ground from northwest to southeast, about 0.6 miles end to end.

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

Heat Below
110 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 60% 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
14°
Jan
15°
Feb
23°
Mar
28°
Apr
36°
May
46°
Jun
57°
Jul
56°
Aug
48°
Sep
32°
Oct
21°
Nov
12°
Dec
Annual Precip: 27.9 in Annual Snow: 142.3 in
Best Time to Visit
December Air 12°F · Water 180°F · +168° contrast
January Air 14°F · Water 180°F · +167° contrast
February Air 15°F · Water 180°F · +165° contrast
December offers 45°F more contrast than July
Current Conditions
26°F
N 0.0 mph 88% Good soaking weather
Today 59° Low 30° Sunny
Spring is +121° warmer
Wednesday 64° Low 34° Sunny 2% precip
Spring is +116° warmer
Thursday 63° Low 36° Showers And Thunderstorms 78% precip
Spring is +117° warmer
Friday 55° Low 30° Rain Showers Likely 63% precip
Spring is +125° warmer
Saturday 58° Low 29° Chance Showers And Thunderstorms 31% precip
Spring is +122° warmer
Where to Stay

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Nearby Camping
Tower Fall Campground 15.8 mi away

Overview Tower Fall Campground—elevation 6,600 feet (2012 m)—is on the north side of the steep, winding, road to Dunraven Pass. The campground is near the Tower General Store and Tower Fall. The Lamar Valley, with spectacular wildlife viewing opportunities, is nearby as are several Day Hikes in the Tower and Northeast Area. Roosevelt Lodge, a short drive from the campground, offers dining and horseback riding. For reservations at the campgrounds managed by Yellowstone National Park Lodges (F...

Reservable Yes
Reserve on Recreation.gov →
High Altitude Advisory 8,265 ft

At 8,265 feet, Ponuntpa Springs Group is in high-altitude territory where the air is noticeably thinner. Soaking in hot water accelerates dehydration and can amplify altitude effects like headache and fatigue. UV radiation is roughly 33% stronger here. Wear sunscreen even on overcast days and take breaks from the water to rehydrate.

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Temperature
180°F
Warm Hot Boiling
Water Temp 180°F (82°C)
Avg Air Temp 33°F
Above Ambient +148°F
Great soaking conditions September
Access
Open
Road Access Backcountry
Nearest Road Grand Loop Road
Distance to Road 6.4 mi
Land
Ownership Federal
Agency National Park Service
Designation National Park
Unit Yellowstone National Park
Manager National Park Service
Protection 1 - Permanent protection, natural state
Frequently Asked Questions
What is the water temperature at Ponuntpa Springs Group?
Ponuntpa Springs Group has a water temperature of 180°F (82°C). This is considered a hot spring, well above body temperature.
Where is Ponuntpa Springs Group located?
Ponuntpa Springs Group is located in Gallatin County, Wyoming at 8,265 feet elevation, near West Yellowstone. Coordinates: 44.6710°N, 110.2900°W.
How do I get to Ponuntpa Springs Group?
Ponuntpa Springs Group has Backcountry road access, with the nearest road being Grand Loop Road (6.4 mi from the road).
Is Ponuntpa Springs Group free to visit?
Ponuntpa Springs Group has Open access. It is managed by National Park Service.
Can I camp near Ponuntpa Springs Group?
Yes, Tower Fall Campground is located nearby (15.8 miles away).
Is it safe to soak at Ponuntpa Springs Group?
No, not at the source. The water at Ponuntpa Springs Group reaches 180°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.