though there are many Camping sites with Litter & Lost item,I agree with those
who would be careful because it is designated as a National Scenic Trail.
you may have heard recently about the board with spikes recently set up on the trail
in an attempt to injure hikers.
thinks like this may work for or against you if caught.
now the trail winds through many areas where detecting is allowed.
but the trail itself
The Appalachian Trail is a 2,180+ mile long public footpath that traverses the scenic, wooded, pastoral, wild, and culturally resonant lands of the Appalachian Mountains. Conceived in 1921, built by private citizens, and completed in 1937, today the trail is managed by the National Park Service, US Forest Service, Appalachian Trail Conservancy, numerous state agencies and thousands of volunteers. https://www.nps.gov/appa/index.htm