Case: GG-2026-101
Status: Open
Documentation rating: E
Location: Flathead Lake, Montana
Spanning over 130 years of documented reports, the Flathead Lake Monster (colloquially nicknamed "Flessie") represents one of the American West's most enduring freshwater cryptid traditions. The recorded history began on July 5, 1889, when Captain James C. Kerr of the steamboat U.S. Grant and his passengers observed a massive, serpent-like creature measuring 20 to 40 feet in length with dark, eel-like skin and prominent black eyes swimming alongside the vessel. Native Salish and Kootenai oral traditions describe similar large, horn-headed water entities (n recollect) inhabiting the deep glacia…
https://gothic.black/Case-Files/id/109