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STATEMAP Columbia

Bedrock geology | Surficial geology

Bedrock Geology

STATEMAP Columbia-BG 7.5, page 1

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Theme: Bedrock Geology
Author: Joseph A. Devera
Description: 34" x 41" single map sheet, contains map, legend, descriptive stratigraphic column, and descriptive text
Year Delivered: 1999
File size/format: 11.9 mb/6.0 PDF

Surficial Geology

STATEMAP Columbia-SG 7.5, page 1

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Theme: Surficial Geology
Author: David A. Grimley
Description: 36" x 58" single map sheet, contains map, legends (2), and cross sections (3)
Year Delivered: 1999
File size/format: 7.8 mb/6.0 PDF

 

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ILLINOIS STATE GEOLOGICAL SURVEY
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Updated 2/27/2007 SLD