The best times on the lower river are early and late in the day. Streamers are a good choice either time with caddis life cycle patterns and hopper patterns effective during evenings. Morning spinner falls can result in some action. Small beadhead nymphs work during both times. On the upper river there are several mayfly hatches including tricos, speckled duns, small PMDs, and a few mahogany duns. But the best action can be found through fishing ant and other terrestrial patterns. Best tactics for Box Canyon includes small beadhead nymphs and early and late day streamers.