I went to Four Quarters Farm in Artemis, PA for Gaian Mind, a techno/industrial rave-in-the-woods type deal with strong nature-religion leanings. On the first night, there was an opening ritual which involved chanting and singing beneath blacklight, near an altar, surrounded by a semi-circle of massive stones (an incomplete henge.) There was lots of dancing to be had. I really enjoyed it.

I would like to help other people in the Philadelphia area go to this farm. It is over 40 acres, and it is beautiful, spiritual land, used for camping and other such events.