New book explores the South's unique — and threatened — natural beauty

When John Muir encountered the Chattahoochee River shortly after the Civil War, it hadn’t yet been dammed or affected by years of sewage dumping. Now, it’s getting cleaner again.

STEVE HARWOOD / FLICKR.COM/CAPTKODAK

Just after the Civil War, John Muir, who went on to be an influential environmentalist but was at the time a “nobody,” went on a very long walk across the Southeast.

Traveling from Kentucky, across Tennessee and Georgia before hopping on a boat to continue his walk in Florida, Muir documented the flora of the region before it was cut up by highways and tarnished by pollution.

About 150 years later, Atlanta journalist Dan Chapman set out to follow Muir’s trail to find what’s changed.