Puget Sound Lidar Consortium

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2005 Lewis County Project

Description:
This project has partial coverage of central Lewis County.  The DEM grid cell size is six feet. The elevation units are in feet. The data is in Washington State Plane South Coordinate System FIPS 4601, in the NAD83(HARN)/NAVD88 datum.

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

Map of Project
Trajectory Files
All-retun ASCII Header Information (.txt)
Project Report
Project Area and Index files (Shapefile)
Frequently Asked Questions
      
Data:
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.  Point data is only available by tile.  A tile is a 1/25 section of a USGS quarter quad.  For details on the subdivisions of this data see the Index shapefiles in the Reference Information section above.
Raster Data by USGS Quarter Quad/Tiles Individual Files DEM Index Map Topographic Image
Index Map
Bare Earth - 6 ft raster resolution
Top Surface - 6 ft raster resolution
Bare Earth Point ASCII files


All-Returns ASCII files





Raster Mosaic Data


File Geodatabase Mosaic




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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.

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