1. Bedrock geologic map of the Port Townsend 30- by 60-minute quadrangle, Puget Sound region, Washington Yale Public content 1988. 2002-06-01T04:00:00Z. 2015-02-13T21:38:41Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Washington (State), Puget Sound Region, and Puget Sound Region.