Angie Marsh fishing Middle River Yellowstone
Angie Marsh fishing Middle River YNP
Copyright 2016 James Marsh
Fly Fishing The Middle River -
Yellowstone National Park
The Middle River is one of the most overlooked streams
in Yellowstone National Park. It's a small stream that
flows northeast from the Absaroka Range for about five
miles inside the park before it converges with the North
Fork river about two miles outside of Yellowstone
National Park. It's a low gradient stream except for its
uppermost parts. There it's rather steep and fast
flowing. There are meadow and timber sections in its
lower part. Fly fishing Middle River always seems to
produce a lot of trout.

The trout are mostly cutthroats that average nine to
twelve inches but brook trout are also present,
especially in the headwaters. It has some very nice size
brook trout. There are also a few brown trout in the
lower sections of the stream.

The stream can be accessed from the East Entrance
Road.  Starting just inside the park, the road follows the
stream closely for a few miles. It is rarely fished for some
reason. That is why we call it one of the most overlooked
streams in the park. Since it is located along a major
entrance road to the park, you would think it would be
heavily fished.

There are many other areas to fish along the North Fork
River that extends from near the park entrance all the
way to Cody Wyoming and that may be part of the
reason why.  It could also be that the area is known for
its grizzly bears. That will scare many anglers away.
Never-the-less, it's a great small stream to fish.

The season on the Middle doesn't get underway until
about the first of July..
The Spring fishing is usually out because of runoff and
cold water.
Summertime is the best time for fly fishing the Middle
Early Fall can be good

Fly Fishing Guide to the Middle River
This is a delightful little stream to fish and it is usually
fairly easy to catch plenty of cutthroats or brook trout.
(Click Here To Continue)
Type of Stream

Cutthroat Trout
Brook Trout
Brown Trout (few)


Northwestern Wyoming, YNP

Nearest Towns
Cody, Wyoming

Last of May - October


Park License
Yellowstone National Park License

National Weather Service Link

Fly Fishing Guide

Hatches and Flies

Fly Fishing Gear

Stream Flow Data:
Real Time USGS Data
Middle River, YNP
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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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