Big South Fork, where a river outlasted the industry

The Big South Fork of the Cumberland River cuts a gorge through the Cumberland
Plateau across the Kentucky–Tennessee line. The protected area around it runs
to 125,000 acres of sandstone bluffs, arches and side canyons. What makes it
unusual among American protected rivers is not the geology. It is that this
land was industrial first, and protected second.

A landscape shaped by leaving

For most of the nineteenth and twentieth centuries this was coal and timber
country. Company towns went up along the gorge; narrow-gauge railways were cut
into the walls to bring coal out; the forest was logged over more than once.

Then the industry went. The towns emptied, the rail beds grew over, and the
forest came back. What is protected today is a recovering landscape with its
industrial history still legible in it — grades and cuts that read as trails, a
chimney where a settlement was, mine openings in the rock.

That layering is why the designation is a **National River and Recreation
Area** rather than a national park. The mandate covers the free-flowing river,
the recovering forest and the human record together, rather than preserving a
wilderness that was never quite there.

The gorge

The rock is Pennsylvanian sandstone, laid down about 300 million years ago and
since cut into by water. The result is a set of features the plateau is known
for:

• Sandstone arches, formed where a weaker layer erodes from beneath a
  harder cap.
• Bluff lines running for miles, undercut into shelters that were used by
  people for thousands of years before the coal companies arrived.
• Whitewater, which is why the river itself is the unit of protection —
  Class III and IV in places, and free-flowing, which on a river system this
  heavily dammed is rare.

What people come for

Paddling, in the season when the water is up. Climbing, on some of the better
sandstone in the eastern United States. Riding — this is one of the few federal
areas with substantial horse camping and a trail network built for it. Mountain
biking, hiking, and camping from backcountry sites to RV sites.

Astronomy too: the plateau is far enough from the cities of either state that
the sky here is properly dark, and stargazing is a listed activity rather than
an accident.

Getting there

The area straddles the Kentucky–Tennessee border. The Bandy Creek visitor
centre in Tennessee and the Blue Heron area in Kentucky are the usual ways in,
and the two are a long drive apart around the gorge — worth checking which side
of the river you want before setting off.