The Norfork is the White's compact, famous little sibling — a short, cold, intensely fished tailwater below Norfork Dam where brown trout were stocked back in 1949 and have been growing large and wary ever since. Because it's short and intimate, it's even more generation-sensitive than the White: a single unit coming on can turn a delicate low-water wade into a fast, pushy river in the time it takes to walk back to the truck. On low water it's exquisite technical fishing — midges, scuds and sowbugs on the famous catch-and-release flats, sight-fished to big rainbows and the odd trophy brown. On generation it's drift-and-streamer water. The fish are educated and the tippet is thin; this is a river that rewards finesse and punishes the angler who doesn't watch the water rise.

• Limestone