Blue Stream Fly Fishing
Fly Fishing Report for:

Beaverhead River - Twin Bridges - Montana

Hatch Chart - Best Access/Spots - Local Fish - About

Water Flow Chart

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Using Water Flow Charts & Weather Reports: Begin with our water flow charts to grasp stream velocity and volume – look for stable or rising trends to pinpoint ideal fishing times. Learn to interpret sudden spikes or drops, which can indicate potential challenges. Next, consult our weather reports to understand ambient conditions. Pairing the two, you can anticipate fish behavior, choose the right gear, and select the best fishing spots. Use these tools together for a holistic approach to your next fishing adventure.

In-Depth Weather

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Directions To Location

Hatch Chart

Month Hatch Time of Day Recommended Fly Sizes Popular Fly Patterns
January Midges Afternoon 18-22 Zebra Midges, Griffith's Gnat
February Midges Afternoon 18-22 Zebra Midges, Griffith's Gnat
March Midges Afternoon 18-22 Zebra Midges, Griffith's Gnat
Blue Winged Olive Afternoon 18-22 BWO Emerger, BWO Dry Fly
April Blue Winged Olive Afternoon 18-22 BWO Emerger, BWO Dry Fly
Skwala Stonefly All Day 10-12 Skwala Stonefly Nymph, Skwala Stonefly Dry
May Caddis Evening 14-16 Elk Hair Caddis, X-Caddis
Blue Winged Olive Afternoon 18-22 BWO Emerger, BWO Dry Fly
June PMD (Pale Morning Dun) Morning 16-18 PMD Emerger, PMD Dry Fly
Yellow Sally Afternoon 14-16 Yellow Sally Nymph, Yellow Sally Dry
July PMD (Pale Morning Dun) Morning 16-18 PMD Emerger, PMD Dry Fly
Yellow Sally Afternoon 14-16 Yellow Sally Nymph, Yellow Sally Dry
August Tricos Morning 18-22 Tricos Spinner, Tricos Dun
Terrestrials All Day 10-14 Hopper Patterns, Ant Patterns
September Mahogany Duns Afternoon 12-18 Mahogany Emerger, Mahogany Adult
Terrestrials All Day 10-14 Hopper Patterns, Ant Patterns
October Mahogany Duns Afternoon 12-18 Mahogany Emerger, Mahogany Adult
November Midges Afternoon 18-22 Zebra Midges, Griffith's Gnat
December Midges Afternoon 18-22 Zebra Midges, Griffith's Gnat

While we strive to ensure the precision of our hatch charts, some reflect broader river region insights. Through ongoing partnerships with local guides and fly shops, we’re committed to refining our data. Should you notice any inconsistencies or have feedback, we welcome you to reach out. 

Best Fishing Spots

The Beaverhead River near Twin Bridges is a renowned fly fishing destination offering a wide variety of trout species. Here are some of its best spots:

  • Poindexter Slough: Known for its brown trout and rainbow trout. It is a perfect spot for those who want slower water.
  • Barrett’s Park: This spot between High Bridge and Twin Bridges provides excellent access to smaller trout, making it ideal for beginners.
  • The Beaverhead Tailwater: Home to some of the largest brown trout in Montana, it is a great spot for experienced anglers.
  • High Bridge to Twin Bridges: Offers a stunning variety of water types to fish, from riffles to slow-moving pools.

Regardless of the spot you choose, the Beaverhead River promises an unforgettable fishing experience with its clean, clear water and picturesque Montana scenery.

Best Access Points

The Beaverhead River in Twin Bridges offers some of the best fly fishing points in Montana. Here are some popular accesses:

  • Barrett’s Park: This public access point is located southeast of Twin Bridges and is well-known for its rich brown and rainbow trout population.
  • Poindexter Slough: This tributary of the Beaverhead River, located south of Dillon, offers another great fly-fishing spot, largely due to its calm and shallow waters.
  • The Point of Rocks: Located between Dillon and Twin Bridges, this is a common choice for many anglers due to the variety of fish species available.
  • High Bridge: Another popular location, primarily for its ease of access and productive fishing for brown trout.
  • Grasshopper Creek: At the confluence with the Beaverhead, this area offers excellent opportunities for large brown trout.

Local Fish

  • Brown Trout – Recognized for their golden-brown hue and large, dark spots.
  • Rainbow Trout – Noted for their strikingly vibrant and colorful patterns.
  • Whitefish – Known for their small size and silvery white color.
  • Cutthroat Trout – Famous for their distinctive orange-red streak on the underside of the jaw.
  • Brook Trout – Recognized for their unique coloring of olive-green to dark brown, and speckled bodies.
  • Northern Pike – Large, predatory species, with a long body, and sharp teeth.
  • Arctic Grayling – Noted for their silver body and large, sail-like dorsal fin.
  • Mountain Whitefish – Known for their small size and lack of distinctive markings.

About The River

The Beaverhead River – Twin Bridges area is steeped in historical significance! The Beaverhead River, known by the Native American Shoshone tribe as the “Arrowhead River”, gets its peculiar ‘beaverhead’ name from the Lewis and Clark Expedition. When they arrived in Montana in 1805, they noted a rock formation that looked like a beaver’s head, hence the unique name.

  • The Beaverhead River was a crucial navigation route for the early explorers, guiding them through the vast Montana terrain.
  • The Twin Bridges town was established later in 1865 during the gold rush period and has become a must-see for visitors. Its warm, local charm and vibrant community make it a delight to explore.

Furthermore, the town is the starting point of the Big Hole River, another historically significant river known for its epic battles and rich fishing history. Today, the Beaverhead River – Twin Bridges area is famous for its world-class trout fishing, making it a hotspot for anglers worldwide!

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