This is one of those places I've passed numerous times in the last 40 years and never stopped. The site is an abandoned mine a little west of Lorraine, California. It's clearly posted, but, that's an invitation. Right? I don't remember whether the mine was active any time during that 40 years. I do know my Dad and I drove by it several times in the 1960s to go quail hunting in Walker Basin. Since the 1970s, I've driven by it at least 50 times. I have been accused of having tunnel vision when driving.
Abondoned mine near Lorraine, California 2013
(photo rendered in Topaz Labs Impression)