gd,
are you base jumping off Devil's Tower in Wyoming?
Devils Tower (Lakota: Mato Tipila, which means “Bear Tower”) is a monolithic igneous intrusion or volcanic neck located in the Black Hills near Hulett and Sundance in Crook County, northeastern Wyoming, above the Belle Fourche River. It rises dramatically 386 m (1,267 ft) above the surrounding terrain and the summit is 1,558 m (5,112 ft) above sea level.
Devils Tower was the first declared United States National Monument, established on September 24, 1906, by President Theodore Roosevelt. The Monument's boundary encloses an area of 5.45 kmē (1,347 acres).