The U-chain was devised by Heinz Duewell in his Tighes Hill book. It follows the form of a Grand
Chain, except that all cases the giving of hands take 2 bars and when dancers get to the end of the
set, they set before returning back along the previous track.

In the case of a “Bottom Open U-Chain”, the setting is in third place. For a “Top Open U-Chain”,
setting would be in first place.