Flows have been dropping out of Island Park Reservoir making for tough fishing in Box Canyon. At Last Chance-Harriman, speckled duns and tricos are still providing some activity in the morning with terrestrials giving action during mid day. In the evening the caddis emergence provides some action. From Warm River to Ashton presenting big nymph patterns brings the best action, while below Ashton Dam action has slowed. Terrestrial patterns will be your best bet there for action.