Firehole River, Yellowstone National Park

The Firehole River flows through several significant geyser basins in Yellowstone National Park to include the Upper Geyser Basin, which contains the world-famous geyser Old Faithful. The river was named by early trappers for the steam that makes it appear to be smoking as if on fire. The Firehole flows over three of Yellowstone's major waterfalls: Kepler Cascades south of Old Faithful, Firehole Falls and the Cascades of the Firehole in Firehole Canyon. The River can reach 86 degrees and only fly fishing is allowed on this river. It has cool colors from the minerals and geothermal activity that flows into it. Definitely worth checking out.

The Firehole River runs through Yellowstone National Park across the Upper Geyser Basin between Grand Prismatic Spring and Old Faithful. The river was named by early explorers because of the steam that makes it appear to be smoking like it was on fire. The water is warm and get as warm as 86 degrees. Incredibly, fly fishing for brown and rainbow trout is excellent in its waters. The Park Service has closed its waters for all other types of fishing. The thermal features that drain into the river also bring levels of dissolved minerals, but swimming is permitted in the river off of Firehole Canyon Dr. Otherwise than the ways to use the river, it is just lovely to look at and notice the colors of the mineral laden water flowing down its banks. It is clear and from the bridge vantage point one can sometimes see the fish.