Jennings Environmental Education Center, Route 528, Brady Township, will host a program on how sap taken from a maple tree becomes syrup at 2 p.m. Sunday. This annual program is free and registration is not necessary, but attendees should arrive on time to get a seat. The program begins with an indoor presentation followed by a guided, outdoor walk. Call 724-794-6011.

Moraine State Park will be the site of the Glacier Ridge Trail Ultramarathon on April 12. Visit www.glacierridgetrailultra.com. A Watershed Education Teacher Workshop will be held from 8 a.m. to 4 p.m. April 12 and 26. Call 724-368-8811.