Separated from: Washington environmental atlas / prepared by Environmental Resources Section, Seattle District, U.S. Army Corps of Engineers, with assistance of the Institute for Environmental Studies, University of Washington. Seattle, Wash. : The Section, 1975.
Relief shown by shading and spot heights.
Accompanied by: Washington, the avifaunal state / by Gordon D. Alcorn. Status of the land mammals of Washington / by Earl J. Larrison (1 sheet ; 57 x 89 cm.).
Includes zoological-terrestrial index (1 sheet ; 57 x 89 cm.).