Camping spots near Mont Alto

Some of these are state or national parks, others are commercial.

Pennsylvania State Parks with camping:
http://www.dcnr.state.pa.us/stateparks/parks/caledonia.aspx - Caledonia State Park, closest park to Mont Alto, about fifteen minutes
http://www.dcnr.state.pa.us/stateparks/parks/pinegrovefurnace.aspx - Pine Grove Furnace State Park, lovely park with an American Youth Hostel mansion, about forty minutes from Mont Alto
http://www.dcnr.state.pa.us/stateparks/parks/coloneldenning.aspx Colonel Denning State Park. Mushroom heaven, but over an hour away. Lovely primitive camping.
http://www.dcnr.state.pa.us/stateparks/parks/cowansgap.aspx Cowan's Gap State Park, west of Chambersburg, also a beautiful park, but also about an hour away.

National Park Service:
http://www.nps.gov/gett/pphtml/camping.html (at Gettysburg National Military Park, located on West Confederate Avenue)
http://www.nps.gov/cato/pphtml/camping.html Catoctin Mountain National Park is a lovely National park south of Gettysburg near Thurmont, which is north of Frederick. About 45 minutes.
And there is a Maryland State Park called Cunningham Falls State Park right beside Catoctin: http://www.dnr.state.md.us/publiclands/western/cunninghamfalls.html

Near Gettysburg (some may be the other side of Gettysburg and keep in mind that travel through Gettysburg in the summer is extremely time-consuming):
http://www.artilleryridge.com/camppage.html (south of Gettysburg)
http://www.drummerboycamping.com/ (east of Gettysburg)
http://www.koakampgrounds.com/where/pa/38114/ (between Gettysburg and Caledonia)
http://www.granitehillcampground.com/ (southwest of Gettysburg off Route 116)

Near Chambersburg:
http://www.gocampingamerica.com/twinbridge/ (West of Chambersburg about five miles)

Near Hagerstown: Most of these seem to be near Williamsport, south of Hagerstown and about an hour away:
http://www.hagerstownkoa.com/  Mostly west and a little north of Hagerstown, about fifty minutes
http://www.campjellystone.com/camp-resorts-detail.php?campgroundID=29  South of Hagerstown off I-81, about 45 minutes

Maryland State Parks with camping:
http://www.dnr.state.md.us/publiclands/western/gambrill.html Between Hagerstown and Frederick, about an hour
http://www.dnr.state.md.us/publiclands/western/cunninghamfalls.html West of Thurmont, MD. About 45 minutes
http://www.dnr.state.md.us/publiclands/maps/fortfrederickmap.html Big Pool, MD, west of Hagerstown, about an hour.
http://www.dnr.state.md.us/publiclands/western/greenbrier.html Greenbrier State Park, near Boonsboro, about fifty minutes
http://www.dnr.state.md.us/publiclands/western/southmountain.html right next door to Greenbrier, about fifty minutes