[CaliforniaMama]

Mark Frauenfelder, of BoingBoing, was hanging out at Eben G. Fine Park, Boulder, CO, for a family reunion. He noticed these sculptures in the river and took the above picture thinking they were a permanent art installation.

He later discovered they were rock sulptures by Mike Grab of Gravity Glue.

The formations act like beacons that inspire interactions with spirit. Intricately balanced rocks spur reactions ranging from disbelief to pure reverence as if they speak to your subconscious.

Mike lives in Boulder and balances rocks when he can. Check out his website for some fantastic images of balanced rocks.

His website also includes his philosophy of balancing rocks and hints on how to do it yourself.

Many people liken the formations to people, and groups or "gardens" to communities of people. They describe a common sensation of increased energy dancing among the gardens.