Lock no. 19
Subtitle: Mississippi River, Keokuk, Iowa
Contributors: United States. Army. Corps of Engineers. Rock Island District
Publisher: US Army Corps of Engineers, Rock Island District
Published: 1994
Place of publication: [Rock Island, Ill.?
Language: eng
Subjects: Locks (Hydraulic engineering) -- Iowa -- Keokuk
Notes: Shipping list no.: 94-0300-P