Survey of the Mississippi River (map) - made under the direction of the Mississippi River Commission - 52f2c74ac543bcecaea7fffe39c93720 (page 21)
Summary
Contour lines are five feet apart.; 360,000.; Scale 1:20,000
Tags
Date
1911 - 1915
Source
University of Illinois Urbana-Champaign University Library
Copyright info
Public Domain