This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Please recognize the U.S. Geological Survey (USGS) and the Southwest Washington Coastal Erosion Study (SWWCES) as the source of this information.
Data were reprojected to Washington Stateplane South-NAD83, FIPS 4602
MLLW depths were calculated using the offset determined by Flood et al., where MLLW depth = - 0.5m NAVD88 depth.
MLLW depths are somewhat arbitrary and NAVD88 depths should be used when possible.