- This is an official Web site of the Pennsylvania Bureau of State Parks. Begin your adventure here. - Caledonia is a treasure for nature enthusiasts and historians. Because it is near Gettysburg, the park has become a favorite for Civil War buffs who find it ideal for family outings. Other unique features of this park include; an 18-hole golf course, part of the Appalachian Trail which ...www.dcnr.state.pa.us/stateparks/parks/caledonia.htm