A first contoured map of the Astoria Canyon complex off the entrance to the
Columbia River. In: Francis P. Shepard, "Submarine Valleys."
The Geographical Review, Volume XXIII, 1933, p. 86.
Image ID: ship3193, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photographer: Archival Photography by Steve Nicklas, NOS, NGS
