"Satan's Hollow" my foot.
Funny, I went into this tunnel years ago with my fried and his friends without me knowing its supposed history. There were old spray-painted heavy metal images on the walls and lots of shattered liquor bottles, various junk on the ground, Satanic non-sense painted everywhere, a smell of fetid stagnant water, a seemingly endless echoing of every move we made, but we saw nothing supernatural.
Creepy place just because it's a dark dank tunnel deep into a hillside, but beyond that, yawn.
Funny, I was right by there today at lunch.