Quoted By:
Related to your posts, OP. I grew up just outside of Death Valley and, when we were in the early years of high-school, we'd always hear about the "Satanist caves" that existed in some abandoned silver mine or other.
Well, we spent all of my Sophomore year exploring every last abandoned mine we could find (there are hundreds in the desert in that area), and we never found them.
So we bought some paint, a copy of the Necronomicon, and painted the blah-blah in it throughout one of the abandoned mines.
Five years later, my little brother told me about him and his friends discovering the "Satanist caves." It was gratifying in the silliest way possible.
There is one particularly amazing vertical mine out there. It goes down to the water table. You tie off a rope, climb down into it, drop a shitload of glowsticks and go swimming in total darkness (yeah... I'll prolly get cancer soon).
(random picture of the desert nearby)