These records include maps from the Eastern Regional Branch of the Washington State Archives. These maps were created or collected by local government agencies throughout Adams, Asotin, Columbia, Ferry, Garfield, Lincoln, Pend Oreille, Spokane, Stevens, Walla Walla, and Whitman counties. Local government agencies include county offices such as the Auditor, the Clerk, the Treasurer, the Board of Commissioners, and also municipalities, school districts, and other service districts. These records span the years from the territorial period to the present.