Mammoth Hot Springs is a large complex of hot springs on a hill of travertine in Yellowstone National Park adjacent to Fort Yellowstone and the Mammoth Hot Springs Historic District. It was created over thousands of years as hot water from the spring cooled and deposited calcium carbonate. Because of the huge amount of geothermal vents, travertine flourishes. Although these springs lie outside the caldera boundary, their energy has been attributed to the same magmatic system that fuels other Yellowstone geothermal areas.
The hot water that feeds Mammoth comes from Norris Geyser Basin after traveling underground via a fault line that runs through limestone and roughly parallel to the Norris-to-Mammoth road. The limestone from rock formations along the fault is the source of the calcium carbonate.
Yellowstone National Park is open daily all year round. Please, check the official website for possible weather alerts.
Official Website http://www.nps.gov/yell/planyourvisit/explore-mammoth.htm
Phone +1 307 344 7381
Address 82190, United States
Coordinates 44°58'11.324" N -110°42'19.436" E