Planning Your Fly-fishing Trip To Yellowstone
...........................  ......................Fly Fishing Yellowstone National Park

When to Come and What To Expect:

Fly Fishing: Yellowstone National Park - July - Gallatin River

The Gallatin River is one of, if not the, coldest stream in Yellowstone National Park.
When the water temperature gets past forty-five degrees, things start happening fast.
When it gets in the low fifties, it can provide some of the fastest action in the park.

If the water is clear by the first of July, normally you will start seeing stoneflies,
caddisflies and Pale Morning Duns. By the tenth of the month, you will start seeing
Green Drakes during a normal year. The Pale Morning Duns should be starting to
hatch by then too.

The Salmonflies are normally hatching well in the upper parts of the river by the tenth
of the month. So are the Golden Stoneflies. Both of these large stoneflies should
provide plenty of action if you fish the nymphs up until you start seeing any egg laying
activity. They egg laying may not start until the middle of July.

Don't forget the Little Yellow Stoneflies or Yellow Sallies. They can provide as much
action as the large ones and the hatch last much longer. They should start hatching
about the middle of the month and continue on through the month of August.

The Green Drake hatch is usually over about July 20th but the Pale Morning Duns will
last all month. The Flavs, or Small Western Green Drakes start hatching about the time
the larger Green Drakes stop hatching. So will the Pink Ladies, or the
Eperous species
of mayflies. Both of these mayflies will last the rest of the month of July.

Don't overlook Bacon Rind, Specimen and Taylor Creeks. They can produce well from
about the middle of July on.

Large hatches of Spotted Sedges start occurring about the middle of July. The
Short-horned Sedges are also hatching in large quantities by the middle of July. There
can be so many caddisflies, stoneflies and mayflies on the water from the middle of the
month until the end of July, it is often difficult to determine what the trout are eating.

The trout in the Gallatin don't always come up to the size of the trout in some of the
larger rivers, but they are far more plentiful and fun to catch. We have caught as many
as fifty or more trout in a half of day of fishing the Gallatin River in July on more than
one occasion. If you enjoy small stream, dry fly fishing, then the Gallatin River is the
perfect stream for you.
Copyright 2010 James Marsh