Old faithful is located in Yellowstone National park, the us national park system was started by Theodore Roosevelt.
Theodore Roosevelt National Park is in western North Dakota.
I'm not sure about state parks, but national parks include Theodore Roosevelt National Park, Theodore Roosevelt Island National Park, Theodore Roosevelt Inauguration National Historic Site, and Theodore Roosevelt Birthplace National Historic Site.
North Dakota
Theodore Roosevelt National Memorial Park was established April 25, 1947. The park's designation changed to Theodore Roosevelt National Park on November 10, 1978.
North Dakota
Theodore roosevelt Theodore roosevelt
North Dakota
Theodore Roosevelt
Recent burning lignite beds have been reported in Theodore Roosevelt National Park and near Amidon, North Dakota. A seam of lignite at Buck Hill in Theodore Roosevelt National Park burned from 1951 to 1977.
The only U.S. President with a U.S. National Park named after him is Theodore Roosevelt, the "Conservationist President". Theodore Roosevelt National Park is in the Badlands of North Dakota.
He never created the national park system!