'In 1906 this natural formation in Wyoming was made the first U.S. national monument'
Devils Tower
TOWERS: In 1906 this natural formation in Wyoming was made the first U.S. national monument
In 1906 this natural formation in Wyoming was made the first U.S. national monument
In 1906 this natural formation in Wyoming was made the first U.S. national monument
TOWERS
Devils Tower
TOWERS