Marias River Montana Trout
Copyright 2016 James Marsh
Fly Fishing The Marias River in Montana
Central Montana doesn't have as many famous trout
streams as some of the other sections of the state but
that's doesn't mean it doesn't have some infamous ones
that are very good trout streams. The Marias River is
one of those almost unheard of streams. It is a 210 mile
long tributary of the Missouri River; however, only a
small portion of the river's length holds trout. Fly fishing
the Marias River tailwater can produce some very nice

The Marias River is formed by the confluence of Cut
Bank Creek and Two Medicine River. The uppermost
sixty miles is too warm for trout. It flows into Lake Elwell
above Tiber Dam. It's the twelve mile stretch of tailwater
below the dam that provides the excellent trout fishing

The tailwater lies in very remote country side and it wide
and deep. Wading is difficult in most areas. It consist of
several braided areas with lots of deep pools with a few
scattered runs and riffles. It is best fished from a
pontoon type drift boat.

The Marias River has some very nice size brown trout
and rainbows as well. Some of the browns reach large
sizes. The river has cottonwood trees along its banks
mixed in with lots of brush and bushes.

Fly fishing the Marias River can be good any day of the
Springtime is a prime time for fly fishing the Marias
Summertime is the most popular time to fish the stream.
Fall is an excellent time to fish the Marias River. The
brown trout spawn and are easier to catch.

Fly Fishing Gear, Tackle and Trout Flies
Type of Stream

Brown Trout
Rainbow Trout

Medium to large

Central Montana

Nearest Towns
Sheep Coulee

3rd Sat. May - Nov 30th

Difficult except near the dam

Non-Resident License
State of Montana

National Weather Service Link

Hatch Chart
Marias River Hatch Chart

Fly Fishing Gear, Tackle and
Trout Flies

Stream Flow Data:
Real Time USGS Data - Shelby Mt.
Real Time USGS Data - Chester, Mt
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Options For Selecting Flies:
1. Email us (
with the dates you will be fishing this
stream and we will send you a list of our
fly suggestions. Please allow up to 24
hours for a response.

2. Call us 800-594-4726 and we will help
you decide which flies you need.

3. Email us (
with a budget for flies and we will select
them to match the budget and get them to
you in time for your fly fishing trip.

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