It was hiking on the trail in New England as a boy that I got the idea to visit as many national parks as I could. Some of the counselors were discussing their trail names and talking about the best natural places to visit in the country. I never forgot that feeling of walking deep into nature, exploring, seeing wildlife, jumping into a swimming hole and imagining traveling to even more beautiful places. It took a long time, but I’m finally fulfilling part of that dream.

I don’t know if I have it in me anymore to hike the whole trail, but I would love to try. The relief map (above) in the park-partner Appalachian Trail Conservancy visitor center in Harpers Ferry gives you a sense of both the distance and the many mountains that must be summited. But I wasn’t about to take a gas-polluting bus to get from the Harpers Ferry visitor center parking lot into town, especially when I could walk a couple miles of the AT to get there. And I would recommend hiking the trail, even just a small section, if you can. For the adventurous, the expert suggested thru-hiking the trail in two sections, from Harper’s Ferry in the spring north to Katahdin in Maine and then from Harper’s Ferry south to Springer in Georgia in the fall.

Below, I’ve listed the units either on or next to the trail.

• Great Smoky Mountains
• Blue Ridge Parkway
• Shenandoah
• Harpers Ferry
• C&O Canal
• Catoctin
• Delaware Water Gap
• Middle Delaware
• Upper Delaware
• Marsh Billings
• Katahdin