Canon Balls in Theodore Roosevelt Nat'l Park, North Unit, ND Filename: CEM009423-TRNP-ND-USA.jpg
Canon Balls in Theodore Roosevelt Nat'l Park, North Unit, ND Filename: CEM009424-TRNP-ND-USA.jpg
Theodore Roosevelt National Park, North Unit, ND Filename: CEM009426-TRNP-ND-USA.jpg