Trail runs for nearly 2200 miles, switching from meadows to
forests, from rocky to dirt paths, going up and down mountains, over rivers, beside
major highways, rock climbing, through a zoo and through a “squeeze” between
massive boulders. It challenges everyone
who hikes it, just by its numerous variations.
I was especially surprised to learn that the trail goes directly through the Trailside Zoo in New York, and that hiking in Pennsylvania is often rock climbing. In much of New Jersey, the AT runs beside rivers, and in NY, you can see New York City in the distance.
I've also learned that the lowest point on the Appalachian Trail is 124 feet about sea level (in New York) and the highest point is Clingman's Dome in Tennesee at 6,643 feet.