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Joel Dexter, B.G.S.
Publishing, Design, and PhotographyOffice of the Chief
Phone: 217-244-2759
E-mail: dexter@isgs.uiuc.edu
State of Illinois | Illinois Department of Natural Resources | University of Illinois
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Joel Dexter, B.G.S.Publishing, Design, and PhotographyOffice of the Chief
Phone: 217-244-2759
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