The Driftless includes an elaborate network of clear, cold limestone creeks that carve through rural farmland. It's one of the most picturesque fishing locales in the Lower 48. But what I like best about fishing the Driftless are the challenges it presents. Fishing these creeks demands a good casting game. It isn't all about distance (it seldom is in trout fishing). Rather, it's a game of accuracy and innovation. On a typical day, you'll be challenged to use everything in your casting arsenal, from flip casts to roll casts to steeple casts to flinging your bug bow-and-arrow style. And yes, occasionally you might need to unfurl that laser 40-footer to a dish-sized target near a cut-bank, next to a thicket of willows. Do it well and you can be rewarded with a 17-inch brown trout, or in some places native brookies, that will eagerly gulp a well-placed fly. Most of the fish are in that 8-12 inch range, but occasionally the size of fish from the size of water factor is remarkable.