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Scope/Content: Two unidentified men in a small boat on the Colorado River, looking downstream toward the potential site for the Boulder Canyon Dam. Technique: Scanned using a Sinar x view camera with Schneider APO-Componon 150mm lens and Better Light Super 8K-2 digital scanning camera insert, 8-bit RGB at 800 ppi.
Colorado River (Colo.-Mexico) River surveys Water resources development--Colorado River Valley (Colo.-Mexico) Boulder Canyon Project (U.S.)
Colorado River (Colo.-Mexico) Boulder Canyon (Colo.)