In this show, we visit one of the largest marshland wilderness area in the U.S.A.'s wilderness preservation system. Producer Philip Graitcer takes us on a tour of the Okefenokee National Wildlife Refuge Wilderness Area, located in southeast Georgia.

Philip takes a tour of the swamp with Chip Campbell, who runs the visitor services concession. Boating about in the black water, they encounter plenty of wildlife and signs of much more.

Philip talks to Judy Drury, a "swamper" whose family has well over a century of connection with the Okeefenokee swamp. Philip gets more scientific about the biology of the swamp with Sara Aicher, a wildlife biologist for the U.S. Fish and Wildlife Service.

Philip wraps up his profile of the Okeefenokee with a few more wildlife sightings from the boat with Chip Campbell, and from one of the boardwalks with Sara Aicher.

You can explore the Okefenokee National Wildlife Refuge Wilderness Area on the area's 16 miles of developed nature trails. But the most popular way to explore the deep wilderness of the swamp is by canoe. Camping is only available on man-made platforms, which require advanced registration.

The show includes additional music from the song Sad Saz, by Podington Bear, available from the Free Music Archive.