tag:digital.library.illinois.edu,2005:/items/a8532720-994e-0134-2096-0050569601ca-9
Illinois, Annaway quadrangle
2022-09-15T18:31:57Z
tag:digital.library.illinois.edu,2005:Item/70126
2016-11-30T19:20:26Z
2022-09-15T18:31:57Z
Illinois, Annaway quadrangle
Contour interval 10 feet.
University of Illinois at Urbana-Champaign Library