Map separates.

Bibliographic Details

Format:	Government Document eBook
Language:	English
Published:	[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2001.
Series:	Fact sheet (Geological Survey (U.S.)) ; FS-01-042.
Subjects:	Topographic maps. Color separation.
Online Access:	https://purl.fdlp.gov/GPO/gpo182581