EAST ORLAND – The U.S. Fish and Wildlife Service will hold an open house and spawning demonstration from noon to 3 p.m. Sunday, Nov. 3, at Craig Brook National Fish Hatchery, Hatchery Road, off Route 1.

The Friends of Craig Brook Atlantic Salmon Museum also will be open. Admission is free. For more information, call 469-7300, Ext. 215.