Gibbon River

The Gibbon River is a river in Yellowstone National Park, in Wyoming, the United States. It rises in the center of the park at Grebe Lake. It flows for a short distance into Wolf Lake. Below Wolf Lake, the river flows through Virginia Cascades into the Norris valley. It flows near the Norris Geyser Basin and through the Gibbon Geyser Basin. From there it flows through the Gibbon River Canyon to its confluence with the Firehole River to form the Madison River. Early maps listed the river as Gibbons Fork or the East Fork of the Madison River. The river between Norris and Madison Junction is paralleled by the Grand Loop Road. The river, along with Gibbon Falls, is named for Colonel John Gibbon, U.S. Army who participated in the 1872 Hayden Geological Survey of Yellowstone.