Hoover Dam construction: diversion tunnels October 12, 1931
Entry/Object ID
0002:1185
Description
Hoover Dam construction: diversion tunnels: Miners and Conway mucking machines at work in the pilot tunnel for diversion tunnel no. 4 (Arizona outer)? October 12, 1931
Collection
Hoover Dam Construction, Colorado River Collection, Hoover Dam - Electrical Equipment, Dennis McBride Collection
