Trip Overview 

The Stonefly Inn and Outfitters – 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 in the town of Twin Bridges, the Stonefly Inn is a licensed outfitter on the Big Hole, Beaverhead, Madison, Jefferson, Missouri and Ruby Rivers, which provides exceptional Montana trout fishing for their guests. 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 cabin door. With five “Blue Ribbon “ rivers, six guest cabins, great steaks, 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 also one of the very best values in the region.

Destination Quick Facts 

Stonefly Inn & Outfitters - Yellow Dog Flyfishing AdventuresLOCATION:  Twin Bridges, Montana

SEASON:  May 1st - October 15th

CAPACITY:  Maximum of 12 anglers and guests

CLOSEST MAJOR AIR HUB:  Bozeman, Montana (BZN)

TARGET SPECIES:  Rainbow, brown, and cutthroat trout

DOCUMENTS REQUIRED:  Montana fishing license

CONTACT US FOR MORE INFO     888-777-5060     INTL 01-1-406-585-8667       info [at] yellowdogflyfishing [dot] com


Lodging Details
At the Stonefly Inn, guests stay in one of six cabins, each equipped with complimentary Wi-Fi, satellite television, and clean, comfortable beds. After fishing, most guest retire to “The Roost” – the Inn’s common area, dining and drinking room – to enjoy cocktails, camaraderie, and dinners prepared to the exacting standards of the cook. With a maximum capacity of only 12 guests per week, Rooster’s staff is able to concentrate on the important things – taking great care of each and every guest. Great fishing, great accommodations, and four-star meals. What more could you ask for?

Food and Beverages
Guests at the Stonefly Inn enjoy nightly dinners from the grill. Montana beef and Alaskan salmon are just the tip of the iceberg – usually prepared by none other than the Rooster himself! A buffet breakfast is served each morning prior to your fishing day. There are also a few small cafes and restaurants next to the Inn if you want to eat out on the town!

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. Non-fishing area activities include sporting clay shooting, horseback riding, swimming, soaking in area hot springs, guided tours of Yellowstone National Park, mountain biking, hiking, scenic flights, and whitewater rafting. For those traveling with children, babysitting services are available at The Stonefly Inn.

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


General Information
The sleepy, quiet town of Twin Bridges, MT is known to many as the epicenter of Montana fly fishing. A small, intimate community, Twin 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.

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 flows 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 is 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.

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.


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 and The Stonefly Inn on your own (you can easily rent a car in Bozeman) a map will be sent to you prior to your departure.

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

Documents Required
Montana fishing licenses are available at all area fly shops and sporting goods stores, or online by visiting the following website: Montana Fish, Wildlife & Parks. You will need to present a valid driver's license in order to purchase your fishing license.

Travel Arrangements
Yellow Dog offers a full in-house travel and reservations system, and can assist with airline tickets, hotels, transfers, and all travel logistics for every destination that we offer. Contact us at 888-777-5060 or travel [at] yellowdogflyfishing [dot] com for more details on airfare ticketing, travel services and trip insurance.


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 or outfitter. All prices listed below are per person, and based on double occupancy. Trips of any length of stay can be arranged, so please call Yellow Dog for details.

3 Nights / 2 Fishing Days = $2,195
4 Nights / 3 Fishing Days = $2,695
5 Nights / 4 Fishing Days = $3,195
6 Nights / 5 Fishing Days = $3,695
7 Nights / 6 Fishing Days = $4,195

What's Included

  • All guided fishing
  • All lodging (with arrival the night prior to your first day on the water)
  • Nightly dinners at "The Roost"
  • Daily Montana style fisherman's breakfast (hot and cold)
  • Packed cooler lunch on the water each day
  • All demo equipment needed (rods, reels, and waders) and all flies
  • Private water fees (if applicable)

What's Not Included

  • Montana fishing license
  • Gratuities for the staff and your guide
  • Transportation to Twin Bridges
  • Alcohol (there is a great liquor store just down the street!)
  • Montana lodging tax

The Stonefly Inn is home to a small fly shop that they are proud to call the "Last Best Fly Shop." This is a full-service shop that specializes in attention to detail and making sure you have the best gear available during your Montana fly fishing vacation. Because their professional guide staff has selected the gear for the shop inventory, you won't be sold any item that you won't find useful. When it comes to Montana fly fishing, Stonefly Outfitters has all the bases covered. With gear from Simms, Hatch Reels, Scott Fly Rods, and custom flies from the best tiers in Montana - what else can you ask for?

Client Testimonials

"The best damn grub in Montana." 

- R.C. Gross (Seattle, WA)

"Everything about the experience exceeded our expectations. Your guides, staff, food, accommodations, location and of course the fishing were all just incredible."

- Emily and Tyler C.