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Devils Tower National Monument - Wyoming
Over time erosion wore away the sedimentary rock exposing the igneous rock formation. Devils Tower National Monument is ...
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Devil's Tower National Monument
Rising out of the prairie that surrounds the nearby Black Hills, Devil’s Tower National Monument is an astounding geological feature to behold. The tower is known for its sheer size and as one of the ...
These 13 national monuments may be ‘at risk’ of losing federal protections, advocates warn
The National Park Conservation Association has identified 13 national monuments it considers at risk after a recent Interior Department order.