Wyoming's Star Valley Historical Society hosts a "summer trek" June 26-28 for state Historical Society members. Walking tours near the Idaho border will lead to museums, emigration trails, geysers and historic factories for everything from guns to cheese. Registration forms appear in the May Wyoming History News and can also be obtained from the Star Valley Historical Society, P.O. Box 1212, Afton, WY 82110 (307/886-5286).