This sepia-toned, panoramic photograph shows a large industrial dredge floating in a wide river. The dredge is a multi-story, rectangular wooden structure with a flat roof and several windows. On its deck, a tall crane-like apparatus with vertical masts and cables extends upward, and a long boom or conveyor arm reaches out from the side toward the riverbank. The text "DREDGE NATOMA" is painted in large dark letters across the side of the housing. The dredge is positioned in the center of the waterway, which is bordered by low, dense banks of trees and shrubs on both sides. The water is calm, reflecting the dark silhouettes of the shoreline. The sky is a uniform, pale color, and a color calibration scale with gray and white blocks is visible at the bottom center, outside the original photographic print.