After the river passes the town of Ashton, Idaho and exits Ashton Reservoir, another remarkable fishery begins. More appropriately, several remarkable fisheries begin. Again great dry fly opportunity and strong hatches become the driver for fly fishing action in these lower river sections, each separated by a series of diversion dams. The landscape of the river changes as well down here, the river winds through farmland studded with old volcanic features, and the Teton Range towers to the east, providing spectacular vistas. These sections are best fished with a preference for quality over quantity, as catch rates can be a little lower but the rewards a bit bigger. The river down here holds both trophy brown trout and large rainbows, and provides some great seasonal fishing. We generally target these sections in May and June and again in September through October.