Here’s a map of all of the most common resupply points along the Appalachian Trail (AT). Nearly all of the popular resupply locations along the AT are post offices (PO). When shipping to a PO you must use USPS as the shipping carrier.
Important: Make sure to use the provided Latitude and Longitude when navigating to the various post offices. Many of the physical addresses for the post offices will take you to locations far from their actual location.
In general, this is how you address a resupply box to a PO along the AT:
C/O General Delivery
[City], [State] [Zip Code]
Please Hold for AT Hiker