Organization • | Illinois State Geological Survey | [X] |
| 1: | | Title: | | | | Volume/Number: | 2007 | | | Issuing Agency: | | | | Description: | Map on 2 sheets showing bedrock geology of Marion Quadrangle, Williamson County, Illinois. Includes stratigraphic column and descriptive text. | | | Date Created: | 12 06 2007 | | | Agency ID: | IGQ Marion-BG | | | ISL ID: | 000000006942 Original UID: 4638 FIRST WORD: Bedrock | |
|