Super XX; By U.S.G.S (GS-VAP-4-17,18); Scale 1:45,500
Creator
Geological Survey (U.S.)
Temporal Coverage
1953-09-27
Date Issued
1953.0
Rights
In Copyright - Educational Use Permitted, http://rightsstatements.org/vocab/InC-EDU/1.0/, Instructors are encouraged to download and print the images for classroom or laboratory instructional use. Please contact the Map Library with questions regarding reproduction for publication via e-mail (http://www.library.illinois.edu/mailform/mail.php?emailcode=mapandgeog) or by calling 217-333-0827.