Locks and the river
Subtitle: a boater's guide to safe travel on the Upper Mississippi River and the Illinois Waterway.
Contributors: United States. Army. Corps of Engineers. Rock Island District.
Publisher: US Army Corps of Engineers, Rock Island District
Published: 1991
Place of publication: [Rock Island, IL (P.O. Box 2005, Rock Island 61204-2004)
Language: eng
Number of pages: 21
Subjects: Locks (Hydraulic engineering) -- Mississippi River.; Boats and boating -- Mississippi River -- Safety measures.; Illinois Waterway (Ill.)
Notes: Shipping list no.: 92-081-P.