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Open-File Report 2015–1118

Depth-to-Basement, Sediment-Thickness, and Bathymetry Data for the Deep-Sea Basins Offshore of Washington, Oregon, and California

By Florence L. Wong and Muriel S. Grim

Thumbnail of and link to report PDF (5.9 MB)Abstract

Contours and derivative raster files of depth-to-basement, sediment-thickness, and bathymetry data for the area offshore of Washington, Oregon, and California are provided here as GIS-ready shapefiles and GeoTIFF files. The data were used to generate paper maps in 1992 and 1993 from 1984 surveys of the U.S. Exclusive Economic Zone by the U.S. Geological Survey for depth to basement and sediment thickness, and from older data for the bathymetry.

First posted July 2, 2015

This publication is online only

For additional information, contact:
Contact Information
Pacific Coastal & Marine Science Center
U.S. Geological Survey
Pacific Science Center
400 Natural Bridges Drive
Santa Cruz, CA 95060

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Suggested citation:

Wong, F.L., and Grim, M.S., 2015, Depth-to-basement, sediment-thickness, and bathymetry data for the deep-sea basins offshore of Washington, Oregon, and California: U.S. Geological Survey Open-File Report 2015–1118, 13 p.,

ISSN 2331-1258 (online)





Data Catalog



Figures (7)

Table (1)

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