The Historical Society of the Cocalico Valley will offer a program, "History of the Conestoga River," on Wednesday, Feb. 26, at 7 p.m. at Holy Trinity Lutheran Church, 167 E. Main St., Ephrata.

Lisa Sanchez, senior naturalist with the Lancaster County Department of Parks and Recreation, will speak about the Conestoga River, from its earliest bridges and mills to its modern-day paddle boats and amusement parks. Attendees will learn about peoples past and present.

The program is free and open to the public. The parking lot and entrance are accessible via the alley behind the church.

For more information about the historical society, visit http://www.cocalicovalleyhs.org or call 717-733-1616.

In the case of inclement weather, the historical society will follow the Ephrata School District's closing decision.