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River guide · Montana

Fly Fishing the Jefferson River

The Jefferson is Montana's overlooked gem: a wide, slow freestone winding through cottonwood bottomlands from Twin Bridges to Three Forks, where Lewis and Clark paddled through in 1805. Low summer flows concentrate fish and bring out hungry browns on hoppers; the spring window before runoff and the fall BWO season reward anglers willing to seek it out.

  • 11 shops nearby
  • freestone
  • Spring (before runoff) and July–October
  • Montana
  • 6 key hatches
See fly shops ↓

The best time to fly fish the Jefferson River is Spring (before runoff) and July–October. Key hatches include Skwala Stonefly, Mother's Day Caddis, Salmonfly, Caddis. 11 fly shops near the Jefferson River can outfit your trip.

Fly shops near the Jefferson River

Shops and guides that fish the Jefferson River. See all 93 Montana shops →

Flatline OutfittersFour Rivers Fishing CoStonefly Inn & FlyshopFishTales Outfitting LLCSunrise Fly Shop / LodgingFrontier Anglers Fly ShopBackcountry AnglerThe Tackle Shop - Outfitter and Fly ShopMontana Angling CompanyAngler’s West Fly Fishing Outfitters
10 fly shops shown

Species on this water

BonefishRedfishSalmonTarponTrout

Nearby towns

Twin BridgesSheridanButte

Rivers nearby

Big Hole RiverMadison RiverBeaverhead RiverGallatin River
Hatches & seasons

When & what to fish on the Jefferson River

River typefreestone
Best seasonSpring (before runoff) and July–October; avoid peak runoff in late May–mid-June
AccessAccess is limited to Montana FWP fishing access sites and bridge crossings; float fishing is strongly preferred over wading given the river's depth and structure. Major access points run from Twin Bridges downstream to Three Forks where the Jefferson meets the Madison and Gallatin to form the Missouri. Highway 41 parallels much of the river.
Key hatches
  • Skwala Stonefly (mid–late March)
  • Mother's Day Caddis (May, conditions permitting)
  • Salmonfly (early June)
  • Caddis (post-runoff, July)
  • Hopper / Terrestrials (late July–September)
  • Blue-winged Olive / Baetis (spring and fall)
From The Fly Bench

Tie the flies that work on the Jefferson River

Step-by-step tying recipes & videos for these patterns.

Browse all 880+ patterns at The Fly Bench
Gear up

Gear up on the Jefferson River

Everything you need before the next trip — rods, lines, leaders, and fly-tying materials.

Shop the gear Flies that work

The flies that work on the Jefferson River

Find the most effective patterns for where you're fishing — and learn to tie them yourself, step by step.

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Updated June 2026