One photo was taken every minute over a period of 2 days (May 17th-18th).
Day 1:" Snow in the Quad", where artificial snow was brought in and a snowboard ramp was built.
Day 2: The All Night Relay Benefit for ACS. We set up camp sites and there was some BBQing. (I'm tagged in the corresponding flickr timelapse pictures.)
If you download it you can see more detail, like the sprinklers going off, individual people walking, and smoke form the BBQs.