If it's you intention to hike all, or part of, one of the Triple Crown trails (AT, PCT, CDT) you'll want to check out one of the Mailing Labels pages. Each page has a quick glance of the mileage and recommended resupply locations, as well as the ability to print prefilled mailing labels. They also have a links page dedicated planning for each trail,  gear and cottage gear maker directories, and trail journals and videos from past hikers.

Click on the image and check them out.