From the ACOS Bulletin 8, December 1976.
October 10, 1976. UFO sighting followed by a cryptid or possible alien sighting. Their connection, beyond the date, is unknown.
There was a follow-up to the encounter in Bulletin 19 (June 1979)
The encounter was also reported in UFOIC Newsletter 49, September-November 1976 (sourced from the ACOS Bulletin 8), and an addendum in UFOIC Newsletter 50, January-February 1977.
Sources & Links:
ACOS Bulletin 8, December 1976.
ACOS Bulletin 19, June 1979.
UFOIC Newsletter 49, September-November 1976.
UFOIC Newsletter 50, January-February 1977.
Bill Chalker (Wikipedia)
Crackneck Point Lookout (Google Maps)