Skip to main content

Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2016


Publication Date
Start Date
End Date


Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2016, Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, July 2016: U.S. Geological Survey data release,


This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in July 2016 (USGS Field Activity Number 2016-653-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) and a kayak equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization) and North [...]


Attached Files

Click on title to download individual files attached to this item.

Original FGDC Metadata

21.74 KB application/fgdc+xml
ew16_july_dem_1m.png thumbnail 1.2 MB image/png
ew16_july_dem_5m.png thumbnail 1.06 MB image/png
ew16_july_dem_1m.asc 14.14 MB application/pgp-signature
ew16_july_dem_5m.asc 3.91 MB application/pgp-signature


Data were obtained to assess the coastal geomorphic response following the removal of two dams on the Elwha River. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify topographic and shallow-water bathymetric features.

Item Actions

View Item as ...

Save Item as ...

View Item...