Information
Date
1971-09-20
Description
p.21 #1506 Blast on Cableway bench excavation, on Arizona side, above dam site. Picture taken from lower portal of Railroad Tunnel No.1. Aug. 24, 1932. p.21 #1457 Picture of blast at same place shown above, taken from opposite, on Black Canyon Highway. Aug. 16, 1932. p.21 #1507 Huge billows of rock and dust pour over canyon rim and descend to river below. Aug. 24, 1932. p.21 #1456 Blast on Arizona intake tower excavation, which has filled canyon with smoke and dust. Upper steel suspension bridge shown in background. Aug. 16, 1932.
Digital ID
pho027842-049
Physical Identifier
Album #2, page 21