May 1 is considered to be the "antler opener" for many in western Wyoming as that is the day antler collection restrictions are lifted for the summer season. All antlers and horns found still attached to the skull need to be investigated by a Game & Fish warden and tagged with a Wyoming Interstate Game Tag for legal transportation. May is also when a lot of antlers are sold in the Jackson Region, at either the annual elk antler auction in Jackson or at the annual antler rendezvous held in Alpine the week before. Consequently, there are a lot of antlers and horns being brought into the state that all need to be tagged before they can be legally transported and potentially transferred to other people. All this tagging of antlers and horns is a significant workload for local Game & Fish personnel.