The Upper Mississippi River System--topobathy.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.) (Author), Upper Mississippi River Restoration Program (U.S.)
Format:	Government Document eBook
Language:	English
Published:	[Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2017.
Series:	Fact sheet (Geological Survey (U.S.)) ; 2016-3097.
Subjects:	Geographic information systems > Mississippi River Valley. Geographic information systems > Illinois > Illinois River Valley. Digital elevation models > Mississippi River Valley. Digital elevation models > Illinois > Illinois River Valley.
Online Access:	https://purl.fdlp.gov/GPO/gpo81993

Description
Item Description:	"February 2017."
Physical Description:	1 online resource (4 unnumbered pages) : color illustrations, color maps.