If you believe this story, the wife of a high level security officer at Edwards AFB saw a real life reptilian deep underneath the base, in the late 1970s.
FADE TO BLACK Radio
If it doesn't start in the right place go to 1 hour 12 minutes and 54 seconds, for the start of the story.
On Earthfiles dot com, she has a story called Long Elevator Ride to Reptilian Humanoid Underground. Jimmy Church contacted Linda to talk to her about it.