Henry’s Fork 7-20-19
The lower river, especially below Ashton Dam, is comfortable enough for swimming. For the river in the Island Park area it is soon time to break out terrestrial insect patterns. Flows in the river in the Flat Ranch Preserve are beginning to drop, so look for fish there to begin moving to the cooler river below. The flow there is dominated by the Big Springs outflow, so should be quite hospitable.