Today, the PLA has over 1000 members and contributing sponsors. A variety of railroad activities are available to the membership. Some enjoy rail trips to unusual destinations. Others take pleasure from the social aspect, attending the monthly meetings, special barbecues, events and dinners. While others take an interest in preserving railroad history, whether through research, writing, photography or working on the Niles Canyon Railway, still others, not living near the Bay Area, take pride in the continuous improvements and expansion by making contributions to help the museum grow.