tag:digital.library.illinois.edu,2005:/items/9d8ecd50-82d4-0134-1f08-0050569601ca-e
Illinois-Indiana, Marshall quadrangle
2022-09-15T18:31:29Z
tag:digital.library.illinois.edu,2005:Item/66938
2016-11-15T17:25:02Z
2022-09-15T18:31:29Z
Illinois-Indiana, Marshall quadrangle
Contour interval 10 feet.
University of Illinois at Urbana-Champaign Library