1. Map showing relative slope stability in the Port Townsend 30ʹ x 60ʹ quadrangle, Puget Sound region, Washington [cartographic material] Yale Public content 1985. 2015-02-13T21:07:40Z. 2015-02-24T23:11:11Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Washington (State), Puget Sound Region, and Puget Sound Region (Wash.).