Which U.S. national park is the only one named after a single person?

Theodore Roosevelt National Park is the only U.S. national park named after a single person.

The park honors Theodore Roosevelt, the 26th president of the United States. Roosevelt first visited the Dakota Territory in 1883 to hunt bison. After the deaths of his mother and wife on February 14, 1884, he returned to the region and invested in cattle ranches, including the Elkhorn Ranch.

The park lies in western North Dakota and consists of the North Unit, South Unit, and Elkhorn Ranch Unit. The Little Missouri River flows through all three areas. Its badlands scenery, grasslands, and wildlife reflect the landscape that influenced Roosevelt’s later conservation policies.

The park became Theodore Roosevelt National Memorial Park in 1947 and received its current national park designation in 1978. It is sometimes confused with Mount Rushmore National Memorial or other parks associated with presidents, but Theodore Roosevelt National Park is the only U.S. national park named directly for one individual.