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Home › Waters › Montana › Jefferson River
River · Southwestern Montana, formed at Twin Bridges by the Beaverhead, Big Hole and Ruby, flowing northeast to the Missouri headwaters at Three Forks · Montana

Jefferson River Fishing Guides

The big, quiet river formed at Twin Bridges, holding large brown trout and far fewer anglers than its neighbors.

A river meandering through open sage flats under big sky in the Northern Rockies
Gauge location. Map data © OpenStreetMap contributors.

Guides on the Jefferson River

Claimed profiles take booking requests. Unclaimed profiles are built from public records so the river is never empty; the guide can claim or remove one any time.

About the Jefferson River

The Jefferson begins at Twin Bridges where the Beaverhead, the Big Hole and the Ruby come together, and it runs northeast for about eighty miles to Three Forks, where it joins the Madison and the Gallatin to form the Missouri. It is a large river with a small reputation, and that is entirely a matter of company: it is surrounded by some of the most famous trout water in North America, and anglers drive past it to reach the others.

That neglect is an opportunity. The Jefferson holds a strong population of brown trout, including a real share of large fish, along with rainbows, mountain whitefish and cutthroat that drop in from the tributaries. Northern pike have established themselves in the slower reaches and burbot occupy the deeper water. The river runs through a broad agricultural valley in long, slow bends with deep outside corners, undercut banks and abundant woody cover.

The Jefferson’s problem, and the reason it is not more celebrated, is summer water. Irrigation withdrawal through the valley combined with hot weather can drive flows down and temperatures up to the point where trout are genuinely stressed. Montana has imposed hoot-owl restrictions here in many years, closing fishing during afternoon hours. The gauge near Twin Bridges reports temperature as well as discharge, which makes it a practical tool for deciding whether to fish at all.

Fished at the right time – spring, early summer, and especially autumn – it is an outstanding streamer river with quiet floats and very little traffic.

Float trips are the standard approach, launching from state fishing access sites spaced along the valley. The river is gentle and forgiving to row, with no serious whitewater, which makes it a comfortable option for anglers who want a long unhurried day working banks with a streamer rod.

This water needs a real photo

The photo at the top of this page is not Jefferson River.

It is a regional stand-in, honestly captioned but generic — we will not put a name to a river we cannot prove. Send us a photograph you took here and it replaces the stand-in, with your credit on it.

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  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
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  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Fished this water? Add a photo

Reviewed by hand before it appears. Pick the water, not the spot — we never publish exact locations.

Never published. We use it only if we need to ask about the photo.

Posting to Jefferson River.

JPG, PNG or WebP, up to 12 MB. We resize it and strip the location data out of the file.

The name shown under the photo. Leave blank to stay anonymous.

Reader photo license v1.0 — the short version:

  • You grant Guided Floats, LLC a non-exclusive, royalty-free license to publish, resize and crop your photo on guidedfloats.com and in GuidedFloats’ own social posts and apps. You keep the copyright and can use the photo anywhere else.
  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
  • Credit is printed beside the photo wherever it appears on the site, using the credit name you give us. Leave it blank and we use your name; write “Anonymous” for no name. Your email address is never published.
  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Access

Twin Bridges - the headwaters where three rivers converge.
Montana fishing access sites - state sites spaced along the valley.
Silver Star - a mid-river access and float landing.
Whitehall - a valley town with nearby river access.
Cardwell - lower river access toward the canyon reach.
Lewis and Clark Caverns area - the lower canyon and nearby landings.
Three Forks - the Missouri headwaters at the bottom of the river.

Seasons

Spring: high and off-color with runoff, but excellent streamer fishing as it drops.
Summer: low flows and warm water often bring hoot-owl restrictions; check before fishing.
Fall: the standout season, with cool water, restored flows and large browns on the move.
Winter: cold and quiet, with limited access and modest fishing on mild days.

From the water

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Questions

What is the current flow on the Jefferson River?

As of Sep 17, 6:15 am, the USGS gauge Jefferson River near Twin Bridges, MT reads 459 cfs, with water temperature 56.1 F. Conditions update every 15 minutes.

What species can you catch on the Jefferson River?

Anglers target Brown Trout, Burbot, Mountain Whitefish, Northern Pike, Rainbow Trout, Westslope Cutthroat Trout on the Jefferson River in Montana.

Are there fishing guides on the Jefferson River?

GuidedFloats lists 4 guides and outfitters on the Jefferson River. Claimed profiles accept booking requests; unclaimed profiles are built from public records and link to the business.

Where can you access the Jefferson River?

Twin Bridges - the headwaters where three rivers converge. Montana fishing access sites - state sites spaced along the valley. Silver Star - a mid-river access and float landing. Whitehall - a valley town with nearby river access. Cardwell - lower river access toward the canyon reach. Lewis and Clark Caverns area - the lower canyon and nearby landings. Three Forks - the Missouri headwaters at the bottom of the river.

When is the best time to fish the Jefferson River?

Spring: high and off-color with runoff, but excellent streamer fishing as it drops. Summer: low flows and warm water often bring hoot-owl restrictions; check before fishing. Fall: the standout season, with cool water, restored flows and large browns on the move. Winter: cold and quiet, with limited access and modest fishing on mild days.

Where are the fishing regulations for the Jefferson River?

Regulations change by season and section. Read the current rules on the Montana agency site: https://fwp.mt.gov/fish/regulations