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Rainbow, Cutthroat & Brown Trout
Ideal for
All Anglers

Experience Some of Southwest Montana's Best Trout Streams

The Stonefly Inn – an operation that calls itself “Montana’s Last Best Fly Fishing Lodge” – is located in the heart of Montana’s “Blue Ribbon” trout country. Based out of Twin Bridges, the Stonefly Inn gives angling guests opportunities to fish famous Southwest Montana rivers such as the Big Hole, Beaverhead, Madison, Jefferson, and Ruby Rivers. With some of the finest guides in the state, this operation offers more than three hundred miles of world-class Montana fly fishing water, all within a one-hour drive of your door. With five “Blue Ribbon “ rivers, choice of accommodations, and the best guides in the zip code, the Stonefly Inn is one of Yellow Dog’s favorites. Low-key, relaxed, and comfortable, this is one of the very best destinations in the region.

Accommodation Details

Lodging Details

Stonefly Inn
Located in the town Twin Bridges, this option is for anglers looking for a comfortable and clean place to hang their hat, outstanding Montana cuisine, and being guided by some of the best fly guides in Southwest Montana. There are six double occupancy cabins on the property, a common dining area, and a fully stocked fly shop on the property that has everything you may need to venture out on your own.

Food and Beverages
Guests at the Stonefly Inn are treated to big sit-down family-style meals – the way eating should be!

Typical Length of Stay
Trips of any length can be arranged. Please contact Yellow Dog for details.

Non-Angling Activities and Options
We are happy to assist you or your family in the organization of non-angling activities during your Montana stay. Remember that we can customize your entire trip package and itinerary. If you want to fish less and sightsee more, then be sure to let us know.

Internet / Communications
Wi-Fi is available free of charge, and some cell phone providers work in the Twin Bridges area.

Travel Details

How To Get There
The nearest commercial airport is Bozeman Yellowstone International Airport (BZN) located in Bozeman, Montana. Serviced by Delta, United, Frontier, Allegiant, and Horizon Airlines, the airport is approximately 1.5 hours from the town of Twin Bridges. If you would like to drive directly to Twin Bridges on your own (you can easily rent a car in Bozeman) a map will be sent to you prior to your departure. Airport transfers can also be arranged at an additional cost.

Arrival and Departure Details / Times
You can arrive and depart the Stonefly Inn on any day of the week.

Documents Required
Montana fishing licenses are available at all area fly shops and sporting goods stores, or online.

Travel Arrangements
Yellow Dog provides airline reservations ad ticketing assistance through etcTravel Group, and a full-service airline logistics agent that can help book airline tickets, hotels, rental cars, and more. You can click here to request a quote or contact Yellow Dog for more information at 406-585-8667. etcTravel Group offers dedicated support services for all Yellow Dog clients. Service fees may apply when booking or researching tickets, and etcTravel will discuss this with you before sending quotes. 

Travel Tools
Airline Ticketing

Moon Phases
Rent This Rod
Trip Insurance and Emergency Evacuation
Global Rescue Membership


General Information
The sleepy, quiet town of Twin Bridges, Montana is known to many as the epicenter of Montana fly fishing. A small, intimate community, Twin Bridge has one flashing traffic light and approximately 300 residents, and in many ways typifies what life was like in Big Sky country 50 years ago. Home to the RL Winston Rod Company and countless sheep, cattle, and horse operations, Twin Bridges has largely escaped the crowds and traffic of some of the better-known Montana towns and cities. There are no souvenir shops (unless you count the auto parts store) or traffic jams (unless you count the cattle drives) – only a sparsely populated river valley, abundant wildlife, panoramic views, and some of the best fly fishing in the Lower 48. Just beyond the outskirts of town are situated five of Montana’s finest blue-ribbon trout streams including the Big Hole, Beaverhead, Jefferson, and Ruby. The legendary Madison is a short, scenic drive down a two-lane highway that doubles as Twin Bridges’ main street. Sprinkle in an abundance of private water spring creeks, ponds, and sloughs, and it quickly becomes apparent why The Stonefly Inn is one of our most sought-after destinations in the Northern Rockies.

Big Hole
Fed by three different mountain ranges, dozens of freestone creeks, and flowing for over 100 miles, the Big Hole River is one of those places you just can’t get off your mind. Often referred to as “The Last Best River,” the Big Hole fishes well from ice-out in April until the winter weather hits in November. Limited outfitter use makes this river a first choice for many anglers.

One of the three great tailwaters in Big Sky country. Stable water flows, dense populations of trout, and great insect life make this river a great option almost any time of year. Multiple spring creek influxes below Dillon create great clear water and amazing dry fly opportunities during the heat of the summer. A great river to fly fish.

They say you have to have an ace in the hole. If we had to pick a river to fit that bill, it would be the “Maddy.” Consistent numbers of trout and good water flow throughout the summer months keep the rods bent when fishing is tough elsewhere.

Formed in Twin Bridges by the confluence of the Big Hole, Beaverhead, and Ruby, the Jefferson flows northbound for more than eighty miles to the confluence of the Madison and Gallatin Rivers to form the Missouri. Receiving less pressure than any of the others, this is one of those fisheries that you have to see to believe.

For those of us that live in Montana, the Ruby River is known as a “sleeper.” From the dam to Twin Bridges, there are over 40 miles of twisting, turning trout water. Good public access makes this a great place to spend an afternoon before, during, or after your trip.

Spring Creeks
If you are looking for the “big name” spring creeks like DePuy’s, Armstrong’s, or Nelson’s, you won’t find them in this area. What you will find are places like Poindexter Slough in Dillon (entirely on state ground), the lower Beaverhead, Albers Slough, Owsley Slough, and a multitude of smaller feeder creeks – many of which don’t even have names!

Boats and Equipment 
Float fishing on area rivers is done via McKenzie-style drift boats designed for fly fishing. The Stonefly Inn has a fully-stocked fly shop with all of the major equipment brands for sale, and a full line-up of rental and demo gear for client use.

Rates and Terms

Package Rates
Remember that Yellow Dog’s services are completely free! When you book a trip with Yellow Dog, you never pay more than when you book directly with the lodge.

2023 Pricing
Please call Yellow Dog for package prices

What’s Included:

  • Lodging
  • Guided fishing
  • Breakfast and dinner
  • Cooler lunches on guide trips
  • Rods/reels, flies, and tackle provided by the guide
  • Guide pick up & drop off on each day of fishing
  • River shuttle fees for guide’s vehicle

What’s Not Included:

  • Airfare
  • Airport transportation (can be arranged at an additional cost)
  • Waders and wading boots
  • Fishing licenses
  • Gratuities for guides and inn staff
  • Alcoholic beverages (BYO)
  • Private water fees (if applicable)
  • Lodging taxes (will be added to invoice upon booking)

Stonefly Inn (Twin Bridges, Montana)
A deposit of 50% per person is due at the time of booking for all trip packages and reservations, and final payment if due 90 days prior to arrival. All trip cancellations must be received in writing, sent to Yellow Dog Flyfishing Adventures, LLC. For all cancellations outside of 60 days of scheduled arrival date, a full refund or a trip credit (minus a $500.00 per person lodge administrative fee and a $100.00 per person Yellow Dog cancellation fee) will be issued. For cancellations inside of 60 days, deposits and final payments will be forfeited, and no refund or credit will be issued unless the cancelled package is resold by either the lodge or by Yellow Dog Flyfishing Adventures. If the package (for the same dates) is resold, then a full refund will be sent minus a $100.00 per person Yellow Dog cancellation fee. In the case of cancellation by the client, both deposit and final payment may be transferred to another guest or angler for those same (original) dates if facilitated and arranged by the client. Receipt of deposit and/or final payment is acknowledgment that registrant has read and accepts the deposit, cancellation, refund and responsibility clauses for these packages. Yellow Dog Flyfishing Adventures strongly recommends that anglers and guests purchase travel insurance for this trip.


Payment Terms For All Yellow Dog Trip Bookings
In order to lock in your trip reservation, we ask that you please remit payment at the time of receipt of invoice. For your convenience, Yellow Dog accepts on-line payments via a direct and secure ACH platform – a quick and easy way to complete your trip reservation. Note that all Yellow Dog invoices include a live link that takes you directly to the Yellow Dog ACH platform for fast and easy payment. For open and existing invoices with a remaining balance, payment reminders also include this easy link to the ACH page.

Other customary forms of payment that are accepted are checks or wire transfers. If you would like to pay in a different way or have any questions about alternate payment methods, please contact Yellow Dog at (888) 777-5060 or (406) 585-8667. We are available Monday through Friday, 9:00 AM to 5:00 PM.

Beginning September 1st, 2020, Yellow Dog will apply a 3% convenience fee for all credit card transactions. 

Yellow Dog Flyfishing Adventures Standard Forms For Payment

  • ACH online payments (for US banking institutions only).
  • Traditional checks (sent via mail)
  • Electronic wire payments (client is responsible for any wiring fees)

*Please contact us if you prefer or require a different payment option. Convenience fees may apply for other payment methods.

**Please be aware that the ACH platform is only available for US financial institutions and bank accounts. International payments can be made via wire or with a credit card.

Yellow Dog Client Reviews

“Great experience overall. The staff was great, and the food/chef, in particular, was great. A very casual and relaxed atmosphere at the Stonefly.” – Steve H.
“The stonefly inn is a fishing venue, not a typical lodge situation. You are there to fish and the staff can accommodate every situation, whether it is a beginner, intermediate, or expert level of ability. The host and staff of the “Inn” are the greatest. The guides are all “knowing” and pleasant.” –
Chuck P.


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