From the Monster Shack mailbox:
“All I can remember is that there were some monsters (or something) living underground (possible in the desert)and as people would be walking along, these monster-things would reach up through the ground and grab a person by the legs and drag them under. I sort of remember there being underground tunnels. It was as if the ground suddenly turned to dry quicksand. Ring any bells? Oh, it was a black and white movie, probably from the 60’s.”
Anybody recognize this one?