Montana· Data built October 15, 2026

Montana trout water

Find cutthroat, redband, rainbow, brown and brook trout streams using Montana FWP’s fish-distribution data. Explore public land along the water, fishing access sites, boat ramps and river gauges.

Trout streams
4,478
Cutthroat streams
3,481
Rainbow streams
1,055
Along public land
14,024 mi
Fishing access sites
 

Stream access in Montana. The highlights show mapped public land along the stream. Montana’s stream-access law can also allow recreation up to the ordinary high-water mark after legal access is gained. A dimmed line does not establish that fishing is prohibited. Read FWP’s stream-access guidance and check current closures and restrictions before your trip.

Check before you fish. Access, stocking and regulations here come from Montana's own data and can be out of date. Posted signs and landowners' wishes come first, and private land needs permission. The rules that apply are in the Montana FWP fishing regulations, and you need a valid fishing license.

Painting of an angler wading a broad river at dusk below low mountains
Madison River · Montana
4,478 streams
Legend & map details
Trout hybridsBrook troutBrown troutRainbow troutRedband troutCutthroat troutNot public landPublic landFishing accessLaunchRiver gauge, flow for the date: low below normal above high no reading

How to read this map · Help with the map

Fly fishing destinations in Montana · guide rates, best months and access

Original watercolor painting of Bighorn River, Montana
Trout

Bighorn River

Fort Smith, Montana · USA

Fly into BIL, 1.5 hr

Guide, per angler
$363
Public access
Moderate
Crowding
Medium
Painting of an angler wading a broad river at dusk below low mountains
Trout

Madison River

Ennis, Montana · USA

Fly into BZN, 1 hr 15 min

Guide, per angler
$400
Public access
Good
Crowding
High
Original watercolor painting of Missouri River, Craig, Montana
Trout

Missouri River

Craig, Montana · USA

Fly into HLN, 45 min

Guide, per angler
$370–395
Public access
Good
Crowding
High

How to read this map

Layers, public land, access and sources

Species layers show FWP records of fish presence, including surveyed and extrapolated distribution. They do not establish abundance, recent stocking or permission to fish. Where species overlap, the top layer’s color appears; turn layers off to inspect the others. Cutthroat includes westslope and Yellowstone cutthroat; redband is shown separately, and trout hybrids have an optional layer. This map does not include every Montana fish species.

Highlighted stretches run through or within about 20 meters of open-access public land in USGS PAD-US, or an FWP Fishing Access Site boundary. Dimmed stretches have no adjacent open-access parcel recorded in these sources. Land ownership is separate from legal stream access: the map does not determine high-water marks, rights of way or tribal access rules.

Streams sharing a name appear separately when FWP assigns them different waterbody identifiers. County filters help distinguish them. The distribution data uses generalized stream lines, so access sites can be offset from the line; site links provide facility details and maps. Access points are site locations, not verified parking coordinates.

Follow the current FWP fishing regulations, including water-specific exceptions. Species presence does not mean a fish may be targeted or kept. Check closures and any site-specific permits or restrictions.

Sources

Spot something wrong? Tell us.

Browse by species

Pick a fish to explore its waters, seasons and public access.