Los Angeles Division Bringing local model railroaders together in Los Angeles and Ventura counties. 2013 NMRA Pacific Southwest Region LA Division Welcome model railroaders to the Los Angeles Division of the National Model Railroad Association. Our purpose is to organize meetings, train shows, demonstration clinics, barbecues, banquets and other activities that bring local model railroaders together. The Los Angeles Division encompasses Ventura and Los Angeles County in Southern California. Save the Date !! February 23rd. 2019 Annual Membership Banquet Details coming soon. April 13th. 2019 SpringRail Details coming soon.