CLAIM-200017reported
“An investigator’s after-action account described a July 27 Lagol object as approximately 30 feet wide and 20 feet high, with curved top, inward-angled sides and flat bottom, appearing flat black through NVGs with no visible lights or markings and not seen with the naked eye.”
Skinwalkers at the Pentagon: An Insiders' Account of the Government's Secret UFO Program
SRC-002101 · Lagol, California investigation, pp. 59–69
“After-action report describes a flat-black object visible through NVGs only.”