Henry’s Fork: Idaho’s famous wild trout fishery

Mar 14, 2019

Henry’s Fork, located in eastern Idaho, is one of the most well-known trout streams recognized for its impeccable wild trout fishery. Henry’s Fork maxes out at over 6,000 feet elevation, and has a 1,000 foot change of elevation throughout its course. This body of water has rich history, and has been a war ground for historic battles between the Nez Perce tribe, led by Chief Joseph, and the United States Military. According to the local guides at JackDennisFishingTrips.com, this stream features long runs of slow water and fast pocket water. If you’re looking to catch a beautiful wild trout with vibrant colors, look no further… Henry’s Fork is waiting for you.

Location/Geography

Henry’s Fork is a tributary of the Snake River, and is nearly 150 miles in length and sits just over 6,000 feet above sea level. The river runs through Southeastern Idaho. The drainage basin is approximately 3,000 square miles and is fed by the Teton River.

Aquatic Species:

  • Rainbow trout (ONCORHYNCHUS MYKISS)
  • Cutthroat trout (ONCHORHYNCHUS CLARKI)
  • Brook trout (SALVELINUS FONTINALIS)
  • Brown trout (SALMO TRUTTA)
  • Rainbow/Cutthroat Hybrid

Food by Season:

Bug – Pink Albert
Seasons – June through August
Peak Season – July

Bug – Mohogany Dun
Seasons – July through October
Peak Season – September

Bug – Speckled Spinner
Seasons – June through September
Peak Season – August

Bug – Caddis Flies
Seasons – May through September
Peak Season – August

Bug – Flav
Seasons – June through August
Peak Season – July

Bug – Golden Stonefly
Seasons – May through July
Peak Season – June

Bug – Salmonfly
Seasons – May through July
Peak Season – May, June

Bug – Western March Brown
Seasons – April through June
Peak Season – April, May

Bug – Blue Winged Olive
Seasons – March through June, September through November
Peak Season – March, April, October

Bug – Midge
Seasons – January through April, September through December
Peak Season – January, February, March, November, December

Bug – Trico
Seasons – July through September
Peak Season – August

Bug – Gray Drake
Seasons – June and July
Peak Season – June

Fishing Techniques:

  • Have patience – Good things come to those who wait. Observe the water for rising trout. There may not always be a ton of activity, but being patient and stalking those rising fish could result in a monster catch.
  • Know your hatch – gather as much information about the hatches that are happening during the time you’ll be fishing Henry’s Fork. Stock up on those flies, and be sure to bring an array of different sizes of the same bug.
  • Fish during the right months – Your best bet is to fish during the salmon fly hatch from late May to late June.
  • Wear a wading belt – wearing a wading belt, and cinching it tight can be a lifesaving tip. There are often many slippery rocks and structures that fly fisherman are constantly walking over. If you slip and fall, a properly secured wading belt will help keep water out of your waders.
  • Enjoy the scenery – Sometimes the best part of fishing is not the fishing itself. Sit back, relax and observe the beautiful scenery that surrounds you.

Summary

Henry’s Fork is a must fish destination for any fly angler. Its trout fishery is amazing, with an abundance of wild brown, rainbow, brook and cutthroat trout. If you play your cards right by matching the hatch, there is a good chance you’ll be able to hook into a monster native fish. The dry fly fishing is exceptional around August, as trout will often rise to eat your bug. When that happens, hang on tight and enjoy the ride.

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