Skip to content
Executive Angler

Trip brief · Bighorn River

How to go fish the Bighorn River

The months we list for the Bighorn River are June, July, August, September, October. You are inside that window now, so this brief is written for August.

August

Reading the gauge…

Flies to tie — August

  • Caddis#14-16

    Elk Hair Caddis

  • Pale Morning Dun#16-18

    PMD Sparkle Dun

  • Grasshopper#8-12

    Dave Hopper

Access

  • Afterbay Dam Launch

    45.318, -107.924parking

  • 3-Mile Island (Lind) FAS

    45.258, -107.510parking

  • Bighorn FAS (13-Mile)

    45.415, -107.786parking

Regs — check current rules before you go

Montana fishing license required. Crow Tribal land restrictions apply — remain within high water mark. Afterbay Dam to Bighorn FAS: artificial lures and flies only in some sections; check current Montana FWP regulations. 5 trout daily, with 2 over 18 inches. No fishing within 200 yards of Afterbay Dam spillway.

Pack list

  • A current state fishing licence
  • Waders and boots you have already leak-tested
  • Net, nippers, forceps
  • Floatant and desiccant
  • Tippet in the sizes the chart asks for
  • Water, sun cover, polarised glasses

Generic gear. Anything specific to this water is above.

Full hatch chart, access map and live gauge on the Bighorn River page →