1. Map of that part of Washington Territory lying west of the Cascade Mountains to accompany the report of Surveyor General [cartographic material]. Yale Public content 1857. 2013-11-20T15:11:19Z. 2018-06-04T17:32:13Z. United States. Surveyor General. Surveyor General's Office, Wagner & McGuigan). English. cartographic image. Public. Washington (State). 1857.