Diorama: – (National Park Service, Eastern Museum Laboratory, Albert Mcclure (1903-1986), Lee Roland Warthen (1893-1949)) ◄ Trước Kế tiếp ►

Artist: National Park Service, Eastern Museum Laboratory, Albert Mcclure (1903-1986), Lee Roland Warthen (1893-1949)

ngày: 1936

viện bảo tàng: U.S. Department of the Interior Museum (Washington, United States)

Kỹ thuật: Plaster

The tragic occurrence of more than 80 mine explosions in five years led to the creation of the U.S. Department of the Interior