11. Maps showing the sea-floor topography of eastern Georges Bank Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey, Map Distribution Resource Type: Map Access & Availability: Loading
12. Map showing bottom topography of the Pacific continental margin, Cape Mendocino to Point Conception Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
13. Experimental digital shaded-relief maps of Oregon Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading