TRAIN GANG: Michelle Mosher and her son Alex Pelotte, 2, of Waterville, watch model trains go around the tracks Friday at the Maine State Museum in Augusta. The model railroad displays will be up and the museum will open free of charge from 10 a.m. to 3 p.m. today. The Great Falls Model Railroad Club and the Maine 3-Railers have set up and will operate a variety of displays running G, HO and O-gauge model trains and accessories.