Morning spinner falls offer the best fishing on the Harriman-Last Chance reach of the river. After that switch to terrestrial patterns and hope for a cumulus cloud build up that means increased relative humidity. This action could result in enough speckled duns to interest trout. Towards evening look for some caddis activity. But when the sun goes behind the hills to the west, put on that hair mouse pattern, and place it near an undercut. You may get nothing, but if a trout responds it is certain to be very large—maybe the trout of the year for you!