Bedrock and Surficial Geologic Maps

Bedrock and surficial geologic maps published by the WSGS are available for download by using the interactive quadrangle index map on this page. The maps are also available for purchase in print or digital format at the Publications and Maps Store.

As this website and index map are being developed the WSGS invites your comments and suggestions for making a user friendly online application allowing you to retrieve the map you desire quickly. If you would like to provide input please send an email to

Click on a quadrangle for the option to download the published map in PDF format.