Puget Sound Lidar Consortium

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2009 Snohomish River Estuary LiDAR Project

The dataset covers the Snohomish River Estuary in Snohomish County, WA.   The survey was funded by NOAA/NWFSC/Watershed Program.  The DEM grid cell size is three feet.  The elevation units are in feet.  The data is in Washington State Plane North Coordinate System FIPS 4601, in the NAD83/NAVD88 Geoid03 datum.

Data Credits: 
When publishing data from this project please credit NOAA/NWFSC/Watershed Program and the Puget Sound LiDAR Consortium.

Reference Information:
This information is provided to be used in conjuction with the LiDAR datasets.

Project Map
Project Report
Quarter Quad Index (Shapefile)
ASCII and LAS Tile Index (Shapefile)
Trajectory Files
Frequently Asked Questions
The raster data is available in either USGS quarter quads and as a Mosaic.  The elevation data in quarter quads is in the
ArcInterchange .e00 format.  The hillshade images in quarter quad are in georeference TIFF format.  The raster elevation data is also available as a mosaic ArcGIS 9.x file Geodatabase.  The file Geodatabase includes raster datasets for the bare earth and the top surface. The point data is available in ASCII text format and LAS file format.  Point data is only available by tile.  A tile is a 1/25 section of a USGS quarter quad, except for a small number of projects that have a different tiling system.  For details on the subdivisions of this data see the Index shapefiles in the Reference Information section above.

Data by USGS Quarter Quad/Tiles Individual Files DEM Index Map Topographic Image
Index Map
Bare Earth - 3 ft raster resolution
Top Surface - 3ft raster resolution list
Bare Earth Point ASCII files list

All-Returns ASCII files list

LAS files

Mosaic Data

File Geodatabase Mosaic gdb

Update Policy
As we approve data from the contractor they are posted here. Areas within many of the bare-earth DEMs can be improved by further processing of the all-return point data to better isolate bare-earth points. As we make these improvements we will upgrade the bare-earth DEMs and derivative images posted here.

Technical Assistance
If you have difficulty loading the data files into your software, cannot easily transfer large files via the Internet, or would like advice on the uses and limitations of these data, please reference our frequently asked questions.  If you can't find what you need here contact us.

This page is maintained by the PSLC webmaster .