Two ships of the United States Navy have borne the name Big Horn, after the Bighorn River.
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He used his chairmanship of the Senate's Interior Committee to secure Western water projects that led to congressional approval and funding for large dams in Montana at Canyon Ferry on the Missouri River, Yellowtail on the Bighorn River, Hungry Horse on the Flathead River, and Libby on the Kootenai River.
Little Bighorn River, (previously called Little Big Horn River) a tributary of the Bighorn River in Wyoming and Montana