This is but a tiny portion of what"s often called the longest hiking-only trail in the world. Today we"re in Stokes State Forest along the top edge of New Jersey, and that 2-by-6-inch white stripe tells us that we"re on the famous Appalachian Trail (the "AT" to those in the know). And what a day to be here, for July 8, 2021, is the trail"s 100th birthday.