
The Illinois River serves as the dominant geographic spine in this 1891 survey, flanked by a network of steep bluffs and drainage runs. To the west, the riverfront settlements of Chillicothe and Rome are established along the Chicago Rock Island and Pacific Railroad, while the inland plateau to the east is anchored by Metamora. This landscape transition from the river bottom to the high prairie is marked by intricate erosion patterns from waterways like Crow Creek, Richland Creek, and Black Partridge Creek.
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