Moraine State Park, Muddy Creek Township, hosts historic oil well operation from 10 a.m. to 4 p.m. Saturday. The central powerhouse is beyond the Forestry and Regional office on Park Road. “Tag a Monarch” will be held from 1 to 3 p.m. Sunday. A free full moon paddle program is set for 7 to 9 p.m. Monday, departing from McDanel's Launch. To reserve a kayak or to register, call the park office at 724-368-8811.

<B>McConnells Mill State Park</B>, Slippery Rock Township, Lawrence County, hosts its 18th annual heritage festival from 10 a.m. to 6 p.m. Sept. 24 and 11 a.m. to 6 p.m. Sept. 25 at the gristmill. The festival celebrates the operational time of the mill from 1852 to 1928, and costumed vendors will display crafts inspired by this time. Bluegrass music, free tours of the mill and a Civil War encampment are planned. Admission and parking are free. Call 724-368-9320 or e-mail to mcmill@localnet.com.