Volcanic Springs

Geysers, Hot Springs,
Mud Pots, and Fumaroles

Mammoth Hot Springs, Boiling River

The Boiling River Hot Springs are located a little more than 1 km (0.6 mile) beeline northeast of Mammoth village. Where the North Entrance Road downslope of Mammoth crosses Gardner River, on each side of the road parking lots serve as trailheads for the easy 800 m (0.5 mile) hike to the natural bathing area at the river. At this spot the Boiling River enters Gardner River and creates ideal water temperatures. However, the discharge channel of Boiling River emerges 130 m (425 feet) farther south from a cave and conducts water of a temperature between 56 - 60 °C (134 -140 °F). The feeding springs of Boiling River are hidden inside the mountain, and the underground route of the hot water has been followed by scientists for approximately 140 m (460 feet). Boiling River is part of the Mammoth Hot Springs drainage and the main spring which feeds Boiling River has the greatest discharge of any hot spring in Yellowstone National Park.

Boiling River:

Boiling River Mammoth Hot Springs Yellowstone

Boiling River, Mammoth Hot Springs

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