Illinois
| Title | Illinois |
| View | 171 |
| Series | VIII: Botany Department |
| Description | Forest and prairie tension line, Washington Heights, Illinois. |
| Subject Terms | Forests (Plant communities) | Prairies | Boundaries |
| Photograph Date | 1921-05-20 |
| Physical Format | Glass negatives; 12.6 x 17.6 cm |
| Location | Washington Heights, Cook County, Illinois |
| AEP Number | aep-iln173 |
| Collection | University of Chicago Department of Botany Records |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf8-01670 |
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