Newly Digitized Geologic Maps for Washington

 

The Washington Geological Survey has announced the publication of 11 geologic maps in digital format.  These maps are updated versions of geologic maps first published between 1952 and 2010.  The map scales of these new editions are 1:48,000 and 1:62,500 and cover the areas shown in the illustration above.

Interested persons can access these maps at the Geologic Information Portal.  On this site, go to the Table of Contents and select "Surface Geology" and, under that section, "25-99k Surface Geology," as shown in the illustration below.

 

 The map data may also be downloaded at the GIS Data and Databases page, but will require special GIS software to read.

More maps in this digitized series are planned for the future.

Here is the link to the official WGS announcement which has more details.