Yellowstone National Park guide

Waterfalls, bison, and geysers: plan the ultimate trip through Montana and Wyoming

Top wow spots of Yellowstone

Waterfalls, bison, lakes, rivers, mountains, and geysers: this behemoth national park stretches through Montana, Idaho, and Wyoming

mammoth hot springs
Ian Shive

Mammoth Hot Springs

Several key ingredients combine to make the Mammoth Hot Springs Terraces: heat, water, limestone, and a rock fracture system through which hot water can reach the earth's surface.

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