As you can read at 'Narrative' part of this report:
http://aviation-safety.net/database/...?id=19660212-0
The USAF aircraft "Crashed in the Sierra Nevada mountains".
So most probable solution is that the aircraft was an USAF Douglas C-124C Globemaster crashed Feb 12th, 1966.
Roberto Pla
http://robertopla.net/
http://www.aire.org/