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Firehole River, Yellowstone National Park

(110+ reviews on the web)
Water Body
The Firehole River is located in northwestern Wyoming, and is one of the two major tributaries of the Madison River. It flows north approximately 21mi from its source in Madison Lake on the Continental Divide to join the Gibbon River at Madison Junction in Yellowstone National Park. It is part of the Missouri River system.DescriptionThe Firehole River flows through several significant geyser basins in the 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 contains 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 is surrounded by geothermal features which empty water into it. One effect of the input of this water is to increase the temperature of the water. Temperatures in the river have been measured as high as 30°C and average 5 to 10 °C (9 to 18 °F) higher than areas upstream of geothermal influence.Water entering the river from geothermal features contains dissolved chemicals and minerals. Levels of boron and arsenic have been found to be above the standard limits for protection of aquatic organisms. Despite these levels, brown and rainbow trout live and spawn in the river.
To visit Firehole River and other attractions in Yellowstone National Park, use our Yellowstone National Park tourist route planner.
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Reviews
TripAdvisor
  • We visited here last week when it was so very cold! This was one of our stops while snowmobiling around the park. So much snow and ice! Just breathtaking! I can only imagine how beautiful it is in the...  more »
  • Firehole River is a lovely river tucked away on a trail just off Grand Loop Road. There is a waterfall about 5 minutes into the trail. Before you enter the wooded area, there is a grassy plain perfect...  more »
  • Stopped by it on the way out and it was one of the better photo spots if you take the climbing trails. Lots of people were catching big fish too.  more »