Water Monster reports in Illinois
6 cases, best-documented first. Page 1 of 1.
We map claims, not creatures. A case is what some source says someone saw or heard, with the link to that source. It is not proof that anything was there, and a retelling counts once, not as a second sighting.

Water Monster · Cook County, Illinois · 1884
The steward of the tug Miller reports a huge black object rising under the port bow, followed by Captain Neiman and the engineer corroborating.

Water Monster · Lincoln Park, Illinois · 1884
Deckhand Ed Burke and Captain Everatt of the tug Success report a huge animal rising out of the water with a roaring sound and darting toward the tug.

Water Monster · West Frankfort, Illinois · 1979
Witness reports seeing a hairy, broad-built humanoid creature near an abandoned railroad bed who grunted and shook a sapling before walking away.

Water Monster · Hyde Park, Illinois · 1867
Fisherman Joseph Muhlke reports seeing a monster appear in Lake Michigan near Hyde Park while fishing.

Water Monster · Cahokia, Illinois · 1877
Witness reports that Mr. [name]'s boy saw a large creature with a wolf-like head, huge bill, and long neck on land near Cahokia.

Water Monster · Illinois · 1867
A fisherman reports seeing a large, dark, oval-shaped creature with a long neck, bony plates, and fins in Lake Michigan near Evanston.