| 1: | | Title: | | | | Volume/Number: | 2007 | | | Issuing Agency: | | | | Description: | Map (2 sheets) and separate report on the bedrock geology of the Vergennes Quadrangle, Perry and Jackson Counties, Illinois. Plots of the map are available for purchase. | | | Date Created: | 02 09 2007 | | | Agency ID: | IPGM Vergennes-BG | | | ISL ID: | 000000002434 Original UID: 2339 FIRST WORD: Bedrock | |
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