Devil's Tower

The first declared United States National Monument is Devil's Tower in northeastern Wyoming. Located by the Belle Fourche River in the Bear Lodge Mountains (part of the Black Hills), it is 1,267 tall. 

Many Native American tribes had cultural and geographic ties to Devil's Tower. Nearly all of them had bear-related names for the monolith such as "Bear's House," "Bear's Lair," and "Bear's Tipi."  During an exploring expedition in 1875, an interpreter misinterpreted the Indian's name for it as "Bad God's Tower" and it then became known to the white man as Devil's Tower.

Many Native American tribes consider this place to be sacred.