The Amherst Railway Society is a non-profit organization, tax exempt 501(c)(3) corporation, which has about 450 members who share some aspect of railroading as a common interest. Monthly meetings cover current topics in railroad news and offer slide shows, movies or a prominent speaker on a railroading topic. The Society also sponsors and participates in several train trips each year and provides a video tape and DVD library free to all members.
Every year in late January, the Society presents its annual "Amherst Railway Society Railroad Hobby Show" at the Eastern States Exposition Fairgrounds in West Springfield, MA. This Show has become the biggest railroad show in the Northeast.