Waldron, Arkansas: Annular drainage

Waldron, Arkansas: Annular drainage ((tags: fluvial, folds, appalachian, mountain belt))

Here's the example that always pops into my mind when I hear "annular drainage": Waldron, Arkansas, USA (lat 34.906513, long -94.122314).

Visit Waldron on Flash Earth:
http://www.flashearth.com/?lat=34.906513&lon=-94.122314&z=11.9&r=0&src=msa

Here's a Flash Earth link to another cool example (probably better, actually) nearby:
http://www.flashearth.com/?lat=34.330259&lon=-95.0429&z=12.8&r=0&src=msa