Southwest Washington Model Railroaders will celebrate its 51st year at Battle Ground High School, 300 West Main St. in Battle Ground, from 9:30 a.m. to 2:30 p.m. Sept. 30. The event will include model trains and material in all scales, collectibles and memorabilia. Free parking is available at the North Parkway Avenue parking lot. Early bird admission at 9 a.m. is $10. Regular admission is $5 or $3 for students. Children under six years old are free with a paid adult.