Since 1948, Walnut Creek Model Railroad Society members have built, maintained, shown and promoted model trains. These hobbyists created Diablo Valley Lines Railroad, a show-stopping HO scale model railroad display (train cars are about 6 to 11 inches long). The display is open to the public on designated days and features 4,300 feet of hand-laid track, steam locomotives, modern diesels, a narrow gauge logging road and mountains that rise to 10 feet. It is one the largest exclusively HO scale lines in the United States. For a viewing schedule and for membership information, visit the website or call the society directly.