The crisp morning temperatures help illustrate why the river was named the Firehole by early trappers. The Firehole River winds through several geyser basins within the Park. The geothermal water discharged into the Firehole will raise the temperature of the river water to as high as 86°F, Yellowstone National Park.
Lamar Valley is known for its abundance of wildlife. Some days when there doesn't seem to be a single creature stirring, the peaceful vastness of the place can be awe inspiring, Yellowstone National Park