Illinois
| Title | Illinois |
| View | 713 |
| Series | VIII: Botany Department |
| Description | Limestone cave, Wolf Lake, Illinois. |
| Subject Terms | Caves | Limestone | Lakes (Bodies of water) | Wolf Lake (Illinois) |
| Photographer | Sedgwick, Paul Joseph |
| Photograph Date | 1920-03-25 |
| Physical Format | Lantern slides; 8.1 x 10.1 cm |
| Location | Union County, Illinois |
| AEP Number | aep-ils412 |
| Collection | University of Chicago Department of Botany Records |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf8-02212 |
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