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Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Director of the Bureau of Reclamation
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Inspection Tour
Parker, D. B.
August 15, 1946
Primary view of Blasting on Highway
Breitenstein, Frank C.
August 15, 1941
Primary view of Blasted Rock at Railroad Cut
Breitenstein, Frank C.
August 15, 1941
Primary view of Effects of Blasting
Breitenstein, Frank C.
August 15, 1941
Primary view of Large Boulders After Blast
Breitenstein, Frank C.
August 15, 1941
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