Historian Karen Washburn will speak about "How the Railroads Shaped Great Falls" at a community program on Saturday, June 10 at 9:30 a.m. at Smith Chapel, 11321 Beach Mill Road, near the intersection with Seneca Road. Washburn will discuss how the electric trolley from Rosslyn to what is now Great Falls National Park — it was a private amusement park in 1906 when the railroad began service — changed this community by making it easier to ship milk from the surrounding dairy farms into Washington, D.C. Coffee and refreshments will be served; the program is free, but registration is required as space is limited. Register to attend at www.smithchapelumc.com/history-events.html.