As long as the sun is on the water, smallmouths remain deep, at the heads of pools and close to structure. Pick a bait (hellgrammite, small crayfish, minnow, cricket, or crawler--in that order) or lead-headed plastic, and cast to the head of the pool. If you're flyfishing, toss a weighted nymph or Clouser streamer. Let the bait or nymph drift back with the flow; it should wash through the shade of the boulders. If you're flyfishing with a Clouser or jigging with a plastic, retrieve just ahead of the current.