Special Event: Volunteer Event, Green/Environmental, Nature Clean-up Day at Whipple Dam State Park The annual clean-up day is an effort for residents and community service organizations to join together to get our local state parks ready for summer by raking leaves, spreading mulch, picking up trash and debris, clearing hiking trails, and other projects...	Whipple Dam State Park Petersburg, PA Sat 4/27/19 at 9am-12pm