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Cost • Not specified
Family Friendly
Pet Friendly
On-site Lodging

Boiling river hot springs

Wyoming

Mammoth Hot Springs hot spring is located in Yellowstone National Park and features geothermal water reaching 140°F. Formed where hot spring runoff meets the Gardner River, it offers mineral-rich soaking pools within a designated area accessible by a short trail.

Boiling river hot springs

Boiling river hot springs Basic Information

Location
Wyoming
Coordinates
44°58′41″N, 110°42′33″W
Hours
Daylight hours only
Entry Fee
Not specified
Family Friendly
Yes
Pet Friendly
Yes
Accommodation
Available on-site

Boiling river hot springs Pool Information

Temperature
Around 140°F at the source
Pool Types
Rock-walled pools along the Gardner River where geothermal runoff mixes with river water
Water Type
Geothermal spring water
Pool Depth
Rock-walled pools along the Gardner River where geothermal runoff mixes with river water
Clothing Policy
Swimsuits required

Boiling river hot springs Amenities & Facilities

Parking
Available on-site
WiFi
Available
Changing Rooms
Yes
Refreshments
Available

Boiling river hot springs Additional Information

Best Season
Year-round
Nearest City
30 minutes from downtown
Elevation
4,500 ft

Boiling river hot springs Mineral Content

Geothermal spring water

What to know about Boiling river hot springs

What is the location of Mammoth Hot Springs’ geothermal soaking area?

The geothermal soaking area near Mammoth Hot Springs is located in Yellowstone National Park, Wyoming. The site lies approximately 2 miles north of Mammoth and 2.9 miles south of Yellowstone’s North Entrance. The access point is situated off North Entrance Road, near the 45th Parallel Bridge. The precise coordinates of the hot spring are 44°58′41″N latitude and 110°42′33″W longitude.

What are the access directions to Mammoth Hot Springs’ hot spring?

The access to the Mammoth Hot Springs hot spring begins by driving south from Roosevelt Arch on Highway 89, also known as North Entrance Road. Visitors must look for the “45th Parallel of Latitude” sign, located about 3 miles south of Roosevelt Arch. Designated parking areas are available on both sides of the road near this sign. From the parking area, visitors walk upstream approximately half a mile on a flat trail to reach the soaking site at the Boiling River.

What is the temperature of the hot spring near Mammoth Hot Springs?

The temperature of the hot spring near Mammoth Hot Springs reaches approximately 140°F at the geothermal source. The hot water flows into the Gardner River, where it mixes with cold river water to form comfortable soaking conditions in natural pools.

What types of pools are found at the Mammoth Hot Springs soaking area?

The pools at the Mammoth Hot Springs soaking area are rock-walled enclosures built along the Gardner River. These pools form where geothermal runoff from the Boiling River blends with the colder river water, creating thermally balanced bathing zones. Multiple pools are available along the riverbank, offering varied soaking spots.

What is the water composition of the Mammoth Hot Springs hot spring?

The water composition of the Mammoth Hot Springs hot spring consists of geothermal spring water. This water emerges from underground hydrothermal activity and flows directly into the Gardner River, where it cools and becomes suitable for human soaking.

What is the clothing policy at the Mammoth Hot Springs hot spring?

The clothing policy at the Mammoth Hot Springs hot spring requires visitors to wear swimsuits. The area is open to public bathing during daylight hours, and proper swim attire is mandatory for all users.

What are the opening hours of the Mammoth Hot Springs hot spring?

The opening hours of the Mammoth Hot Springs hot spring are limited to daylight hours only. Soaking is permitted only during the day, and the area is closed during nighttime.

What is the cost to access the Mammoth Hot Springs hot spring?

The entry fee or cost to access the Mammoth Hot Springs hot spring is not specified. The site is publicly accessible and does not require advance booking.

Is booking required to visit the Mammoth Hot Springs hot spring?

No, booking is not required to visit the Mammoth Hot Springs hot spring. The site operates on a walk-in basis and does not require reservations.

Is the Mammoth Hot Springs hot spring kid friendly?

Yes, the Mammoth Hot Springs hot spring is kid friendly. Families with children are permitted to use the pools, provided they follow safety guidelines and proper supervision is maintained.

What is the current accessibility status of the Mammoth Hot Springs hot spring?

The accessibility of the Mammoth Hot Springs hot spring is currently limited. Trails and road access to the Boiling River area were closed due to a flood that occurred in June 2022. Visitors are advised to check current conditions before planning a visit.

What facilities are available at the Mammoth Hot Springs hot spring?

The facilities at the Mammoth Hot Springs hot spring include a single pit toilet located at the trailhead. Additional infrastructure prior to the 2022 flood included benches, pathways, and informational signage.

What accommodation options are near the Mammoth Hot Springs hot spring?

Accommodation options near the Mammoth Hot Springs hot spring include the Mammoth Hot Springs Hotel located within the park, the Mammoth Campground, and various hotels in Gardiner, Montana. These options provide convenient lodging for visitors accessing the geothermal soaking area.

What parking is available at the Mammoth Hot Springs hot spring?

Parking for the Mammoth Hot Springs hot spring is available in designated lots on both sides of North Entrance Road near the 45th Parallel sign. These lots serve as the starting point for the half-mile trail leading to the soaking pools.

What is the best season to visit the Mammoth Hot Springs hot spring?

The best season to visit the Mammoth Hot Springs hot spring is during summer and winter. The site is closed during spring and early summer due to seasonal runoff and safety concerns.

What attractions are located near the Mammoth Hot Springs hot spring?

Attractions located near the Mammoth Hot Springs hot spring include Mammoth Hot Springs terraces, the Roosevelt Arch, the Gardner River, the Grand Canyon of the Yellowstone, and Old Faithful. These landmarks are accessible within Yellowstone National Park and offer additional geothermal and scenic experiences.

What is the distance from the Mammoth Hot Springs hot spring to the nearest major city?

The distance from the Mammoth Hot Springs hot spring to the nearest major city, Bozeman, Montana, is approximately 85 miles. Bozeman serves as a regional hub for visitors traveling to the northern entrance of Yellowstone National Park.

Where can visitors find more information about the Mammoth Hot Springs hot spring?

Visitors can find more information about the Mammoth Hot Springs hot spring by visiting the official National Park Service website at https://www.nps.gov/yell/planyourvisit/swimming-soaking.htm. The site provides updates on access conditions, regulations, and visitor safety.

Photo Gallery

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Contact Information

307.344.7381
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