Henry's Fork

The Macks Inn reach of the Henrys Fork Snake River is an example where IDF&G plants sterile triploid rainbow trout. When IDFG considers stocking hatchery fish in a stream or river supporting wild reproducing trout such as the Henrys Fork, we often do not want the stocked fish to influence the genetics (and consequently the behavior and traits) of the wild trout present which have proven to be well-adapted to local stream conditions. Stocking sterile Rainbow Trout into the Macks Inn reach of the Henrys Fork augments angler catch while protecting the genetics of native Yellowstone Cutthroat Trout present in the Henrys Fork and Henrys Lake outlet.

 Flow is about 756 cfs above Chester Dam, and about 1090 cfs below it.  The current mild weather  makes fishing the river Below Ashton Dam productive if you do not mind wind and rain. Very early or late in the day or during unsettled weather offers good chances for successful streamer presentation.