Photo Courtesy Steven Lamb
Copyright 2010 James Marsh
Fly Fishing Boulder River Wyoming
The Boulder River starts in the Absoraka-Beartooth
Wilderness in the Gallatin National forest. It's a tributary
of the Yellowstone River. This river has a wide diversity
of water types from its headwaters down to its lower
valley section that flows through the open areas of land
near Big Timber.

From the Boulder River headwaters downstream for
about twenty miles, the river consist mostly of fast,
pocket water with lots of plunges, fast rapids, riffles and
runs with some pools. This section has mostly rainbow
and cutthroat trout. Lower down it begins to fall on a  
lower decline and the water slows down to a more
moderate speed with longer sections of riffles with larger
and deeper pools.

It flows over the hundred foot high water falls at the
Natural Bridge State Monument and then begins to slow
down even more as it flows through agricultural land.
The section below the falls downstream for about ten
miles flows through private property without any access.  
Farther downstream it picks up the water from the East
Boulder River at the Forks and begins to speed up to
some extend through more open and wider areas of
pocket water.

The lower sections of the river contains some very nice
size rainbow and brown trout ranging from about ten to
twenty inches. Much of the fishing done below the falls is
done on a drift boat or raft. The water above the falls is
very difficult to float in anything but a kayak. We don't
suggest it at all for fishing purposes. Below the falls,
downstream of the confluence of the East Boulder River
the river can be fished from a boat, but the upper
section is still quite fast. The lower section of the river
slows down and can be fished from any type of drift boat.

Fly fishing the Boulder River is as good as most any
stream in the United States. It is just surrounded with
many more fine trout streams most of which have been
published much more than the Boulder due to its lack of
commercial establishments. It is one of Angie and I's
favorite Montana streams. We highly recommend it.

Seasons:
The season is the general Montana Season
Spring:
Springtime is only good prior to the runoff
Summer:
Summertime is the best time for fly fishing the Boulder
River
Fall:
Early Fall season is usually excellent

Fly Fishing Gear, Tackle and Trout Flies
Type of Stream
Freestone

Species
Brown Trout (Wild)
Rainbow Trout (Wild)
Cutthroat Trout (Native)

Size:
Small - Medium

Location
South West Montana

Nearest Towns
Big Timber

Season
3rd Sat. May - Nov 30th

Access:
Good

Special Regulations
None

Non-Resident License
State of Montana

Weather
National Weather Service Link

Fly Fishing Gear, Tackle and
Trout Flies
Boulder River Montana
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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. Call or email us with a budget for
flies and we will select them and get
them to you in time for your trip.

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