Project 10073 Record Card: Sighting near Glennie, Michigan, 20 July 1958

This document details a sighting report from 20 July 1958, involving an unidentified object that impacted a lake four miles north of Glennie, Michigan. The report, processed under Project 10073, describes an object that hit the water, creating a ten-foot-wide circle with foam reaching two to three feet in height. Witnesses, including a resort owner and a vacationer, reported a loud sound upon impact, followed by a sizzling noise that lasted for approximately one and a half minutes. The object reportedly moved in a zig-zagging fashion across the lake surface for 200 feet before sinking into 50 feet of water. The investigation, conducted by 2nd Lt John B. McKinnon of the 445th Finceptron, concluded that the object did not fall within the definition of a UFO because it was never observed in the air. Intelligence assessments suggested the phenomenon might have been caused by an underwater disturbance, a semi-dud bomb, or perhaps a weather balloon remnant from the Green Bay or Milwaukee areas. The report notes that the depth of the lake prevented any physical recovery of the object. The Air Technical Intelligence Center (ATIC) requested further investigation into the incident, specifically suggesting interviews with local pilots and air crews, and potential dredging of the lake, provided the object was determined to be a valid UFO. However, the final Air Intelligence Information Report ultimately classified the incident as not a UFO, attributing the event to an unknown underwater disturbance.