Blue-Ribbon Trout Water · Wisdom, Montana

Fly Fishing the Big Hole River

One of the last great wild trout rivers in the American West, right down the valley from your cabin door.

The Big Hole River is a federally designated blue-ribbon trout fishery. It runs through the valley floor just minutes from the property. Holds brown trout, rainbow trout, brook trout, and the Arctic grayling — one of only a handful of U.S. rivers where this species survives. The Big Hole River Foundation actively works to protect and restore this fishery.

What You'll Catch

Brown Trout – Salmo trutta
Salmo trutta

Brown Trout

Most abundant in the Big Hole, especially below Dickie Bridge. Can exceed 20 inches. Aggressive fall feeders — September and October are prime.

Man holding a Rainbow Trout
Oncorhynchus mykiss

Rainbow Trout

Found throughout the river. Strong, acrobatic fighters in fast water. Respond well to dry flies and nymphs in riffles and runs.

Arctic Grayling showing iridescent dorsal fin
Thymallus arcticus · Rare

Arctic Grayling

Montana's rarest game fish and one of only a handful of U.S. rivers where they survive. Found in the upper Big Hole. That iridescent sail dorsal fin is unmistakable — a true bucket-list catch.

Brook Trout – Salvelinus fontinalis
Salvelinus fontinalis

Brook Trout

Found in tributary streams and upper reaches. Stunning coloration and less technical to catch — ideal for newer fly fishers or a change of pace from the main river.

Current Regulations (2025–26)

  • Artificial lures and SINGLE-POINTED HOOKS ONLY from Dickie Bridge to the mouth — no treble hooks allowed
  • Brown trout CATCH AND RELEASE ONLY below Dickie Bridge (daily limit: zero)
  • Hoot owl restrictions may apply in summer — fishing prohibited 2pm–midnight when river temps exceed 73°F for 3 consecutive days
  • Seasonal closures: Sections of the river close October 1 for spawning protection
  • Montana Fishing License required — nonresident: $86/season or $15/day
  • AIS (Aquatic Invasive Species) Prevention Pass required: $2/year or included with license
  • Always check current FWP regulations — closures can change seasonally

⚠️ Regulations change frequently. Always verify current rules at fwp.mt.gov before fishing.

How to Get Your License

1

Buy Online

Purchase your license online at fwp.mt.gov or at any local license vendor

2

Add AIS Prevention Pass

Include the Aquatic Invasive Species Prevention Pass with your purchase

3

Download the App

Download the FWP app to have your license on your phone

Visit Montana FWP Licenses →

Best Times to Fish

June

Runoff ends, salmon fly hatch begins — some of the best dry fly fishing of the year

July–August

Hoot owl restrictions possible in heat. Fish early morning. Terrestrials (hoppers, ants) work well.

September

Water cools, fish feed aggressively before winter. Brown trout staging for spawn.

October

October Caddis hatch. Streamer fishing for big browns. Some sections close Oct 1.

Winter

Limited access, some sections ice over. Check current closures.

Official Links & Resources

Montana FWP Fishing Licenses

fwp.mt.gov/buyandapply/fishing-licenses

2025–26 Fishing Regulations (PDF)

fwp.mt.gov/binaries/content/assets/fwp/fish/regulations/2025_2026-fishing-regulations-final-for-web.pdf

Big Hole River Foundation

bhrf.org

Big Hole River Foundation Regulations Guide

bhrf.org/newsandevents/montana-fishing-regulations-a-guide-to-fishing-on-the-big-hole-river

Sunrise Fly Shop (Local Reports)

sunriseflyshop.com/montana-fishing-reports/big-hole-river/

FWP Southwest Montana Trout Management

fwp.mt.gov/conservation/fisheries-management/trout-mgmt-sw-mt

Local Tips

The Big Hole River Foundation publishes updated regulation guides — bookmark their site

A 5-weight rod is the versatile choice for the Big Hole. Bring 9-foot leaders for technical water

Hatch matching matters here — caddis, PMDs, and hoppers are the Big Hole staples

Waders and wading boots are essential — the river bottom is rocky and slippery

Ask at Sunrise Fly Shop in Wise River for current conditions before you hit the water

The grayling section is in the upper river — coordinate with FWP for current access info

Book the Cabin, Fish the River

Your Montana fly fishing adventure awaits

Check Availability