tag:digital.library.illinois.edu,2005:/items/9e30c680-994e-0134-2096-0050569601ca-8
Le Roy quadrangle, Illinois : 15 minute series
2022-09-15T18:31:47Z
tag:digital.library.illinois.edu,2005:Item/69920
2016-11-30T19:19:18Z
2022-09-15T18:31:47Z
Le Roy quadrangle, Illinois : 15 minute series
Contour interval 10 feet.
University of Illinois at Urbana-Champaign Library