Stone & Webster #11, which began life in 1866 as Central Pacific #24 "Montana," is working the gravel pit in the Basin in February 1913. Trainloads of gravel were carried several miles to a crushing and mixing plant, where the rock was made into concrete for the three dams then under construction on the perimeter of the Basin.
Southern California Edison Photographs and Negatives Story of Big Creek Southern California Edison Photographs and Negatives, Huntington Digital Library
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