Organization • | Illinois State Geological Survey | [X] |
| 1: | | Title: | | | | Volume/Number: | | | | Issuing Agency: | | | | Description: | Map (1 sheet) describes the distribution and density of sinkholes in the Columbia quadrangle, Monroe and St. Clair Counties, Illinois. scale 1:24,000 | | | Date Created: | 02 08 2008 | | | Agency ID: | IGQ Columbia SD | | | ISL ID: | 000000007109 Original UID: 4775 FIRST WORD: Sinkhole | |
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