Pics -> http://www.abandonedmines.net/goldmine_prospect.htm
Location Info -> http://www.findaspring.com/sun-ray-spring-ellenville-ny/
How I originally learned about it -> http://www.freerepublic.com/focus/f-chat/1651652/posts
"The main tunnel is at the foot of High Point Mountain, this tunnel extends 515 feet into the mountain, at the end of the tunnel there is a spring. There was no historical mention of the tunnel until 1905 when the tunnel was discovered... The main tunnel has about a foot of water in it. The upper tunnel is dry and seems to curve up into the mountain. The end of this tunnel has not been found, it seems to branch off in several directions."