Venture Outdoors North office in Zelienople hosts a Blueberry Pie Hike from 1 to 4 p.m. Sunday at Brush Creek State Park and a Hydrobike Excursion from 9 to 11 a.m. Sunday at Raccoon Creek State Park. Visit www.ventureoutdoors.org.

Moraine State Park will be the site of historic oil well operation from 10 a.m. to 4 p.m. Saturday at the central powerhouse beyond the Forestry & Regional office building on Park Road (Old 422) off Route 528. "Hike the Park" is planned for 10 a.m. Saturday and "Walk with the Mammals" begins at 1:30 p.m. Sunday. Call 724-368-8811 to confirm programs.region

McConnells Mill State Park, Slippery Rock Township, Lawrence County, has opened the old mill through Labor Day. A program on wild edible plants will take place at 2 p.m. Saturday. A "Hell's Hollow Industrial History Hike" is planned for 1 p.m. Sunday. Call 724-368-8811 to confirm programs.