The park will observe Earth Day with a volunteer day to tidy up the park. There will be a variety of projects to cater to all age groups, so bring out the entire family. After a morning of volunteering, all participants are invited to the Mountain Creek bridge dedication followed by lunch. The main course will be provided to all participants courtesy of the Friends of Pine Grove Furnace. Volunteers staying for lunch should bring a covered dish to share. Registration is required by April 19. Please register online, at the park office or by calling 717-486-7174.