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Yellowstone River

Mailing Address
Montana Fish, Wildlife & Parks
2300 Lake Elmo Drive
Billings, MT 59105
All Year
  • Lewis And Clark
Special direction map

Special Directions

Originating high in the interior of Yellowstone National Park at the Yellowstone Lake in Wyoming, the Yellowstone River flows 676 miles to its confluence with the Missouri River - unrestrained by a single dam. Eventually, the Yellowstone River joins the Missouri River just past the border with North Dakota.