Green Tunnel from Kevin Gallagher on Vimeo.

It took 6 months to make this video clip of the 2200-miles (3500+ km) long Appalachian Trail, which stretched from Springer Mountain, Georgia, to Mount Katahdin in Maine. But it'll take you just a bit over four minutes and a half to make the virtual journey.

Here's a fantastic video clip by Kevin Gallagher: Hit play or go to Link [Vimeo]