The Firehole River is one of two major tributaries of the Madison River. From its start at Madison Lake, on the Continental Divide, it flows approximately 21 miles to join the Gibbon River at the Madison Junction in Yellowstone National Park. Because the stream appears to be smoking as if on fire, due to it flow through several significant geyser basins in Yellowstone Park, early trappers named it Firehole River. The Firehole is a magnificent trout stream. Perhaps one of the most unique experiences to fishing the Firehole is the opportunity to cast to wild trout while free roaming bison and elk graze alongside you.