Washington State Department of Natural Resources

Division of Geology and Earth Resources


1:100,000-scale geologic mapping database of Washington State

Digital Data Series 18 (DS-18)


November 2016





·         One ESRI ArcGIS 10.3 geodatabase, consisting of a set of 13 feature classes.

·         Metadata for each feature class, in HTML format (for ease of reading outside of GIS software)

·         One ArcGIS map document (ending in the .mxd extension), containing specifications for data presentation in ArcMap

·         One ArcGIS layer file for each feature class  (ending in the .lyr extension), containing specifications for data presentation in the free ArcGIS Explorer (as well as ArcMap)

·         This README file





Projection:  Lambert Conformal Conic

Coordinate system:  Washington State Plane

Zone:  South (FIPS 4602)

Datum:  NAD83 HARN

Units:  Feet

Spheroid:  Geodetic Reference System (GRS80)





The data herein are provided in ESRI ArcGIS 10.0 file geodatabase format, which may be used in ArcGIS, version 10.0 or later; other GIS software may also be able to use this file format. If you do not own GIS software that can use the geodatabase, ESRI provides free software, called ArcGIS Explorer (http://www.esri.com/software/arcgis/explorer/), that is capable of viewing this dataset and using the accompanying layer (.lyr) files.


Other geology data can be downloaded from:







Washington Division of Geology and Earth Resources, 2016, Surface geology, 1:100,000--GIS data, November 2016: Washington Division of Geology and Earth Resources Digital Data Series DS-18, version 3.1, previously released June 2010.




This digital data and metadata (hereinafter collectively referred to as the "information") are provided on an ‘as is’, ‘as available’, and ‘with all faults’ basis. Neither Department of Natural Resources nor any of its officials and employees makes any warranty of any kind for this information, express or implied, including but not limited to any warranties of merchantability or fitness for a particular purpose, nor shall the distribution of this information constitute any warranty.


The information is collected from various sources and will change over time without notice. DNR and its officials and employees assume no responsibility or legal liability for the accuracy, completeness, reliability, timeliness, or usefulness of any of the information provided nor do they represent that the use of any of the information will not infringe privately owned rights.


The information is not intended to constitute advice nor is it to be used as a substitute for specific advice from a licensed professional. You should not act (or refrain from acting) based upon the information without independently verifying the information and, as necessary, obtaining professional advice regarding your particular facts and circumstances.


References to any specific commercial product, process, and service by trade name, trademark, or manufacturer do not constitute or imply endorsement, recommendation, or favoring by DNR and its officials and employees.


In no event will DNR be liable to you or any third party for any damages arising out of the use of or inability to use the digital data, even if DNR is advised of the possibility of such damages.