Let's say you're nymph-fishing on Colorado's South Platte River. You've hiked up into the canyon where those deliciously deep potholes are -- the big-fish water -- but have found that today the trout are working the shallow, fast runs. It took you two hours to figure that out, but it's a good sign. They're hungry and, as your partner says, they are "looking up." You're fishing a scud pattern, not the scud
pattern, but one you worked out yourself. The differences are minute but are enough to make it your fly and you are catching fish on it, which is highly satisfactory.
You're working the...