Heads do a California Twirl at the start and the sides turn backs to partner. From here everything is the exact reverse of a Grand Square. Where people would back up on the Grand Square, they walk forward and vice versa. Where people turned in on the Grand Square, they turn to face out in this one.
Bill Barton 1973
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.