.......................  ......Fly Fishing Yellowstone National Park

07/15/09

Fly Fishing Yellowstone - Pale Morning Dun - Nymph

Trout eat the Pale Morning Duns on a regular basis because they are exposed
most of the time. They are crawlers that cannot hide underneath the rocks like
the clingers but they can get down between them and in vegetation. The like the
cobble and gravel bottom that is found in many of the streams in Yellowstone
National Park. The nymphs can swim, just not very well. They prefer moderately
flowing water. They can be found in streams that consist mostly of pocket water
because they can find many places within the faster water streams that provide
the right type of habitat. You will find a good population in the Gallatin River, for
example. They will reside in the pockets behind boulders and along the banks.
The ends of long runs and riffles can also provide the right habitat. The nymphs
are usually very plentiful in the streams that have them and fishing an imitation
of them isn't a bad fly choice anytime.

Presentation:
If you are fishing at times when there isn't a hatch occurring, you would fish the
nymph in the moderately flowing water with or without a strike indicator. We
prefer not to use one, but you can certainly catch trout using one. If a hatch is
occurring, you may want to fish an imitation of the nymph up until the time the
hatch starts. They usually hatch about the middle of the morning. You may want
to try to imitate the nymphs swimming to the surface to hatch in the surface film.
A floating nymph fished just under the surface works when the hatch is
underway, but we prefer to use an imitation of the emerger.

If you are fishing prior to the hatch, we suggest you fish the nymph imitation in
the current seams and through the long runs. Use short, up and across cast
and follow the nymph downstream with the tip of the rod. Allow the nymph to
swing down and across before casting again.

Smooth water in rivers such as the Madison and Firehole can be very deceptive.
The current is usually strong even though the water is smooth. Theres a lot of
vegetation that your fly will hang on unless you select the areas to drift your
nymph through. It is also difficult to keep a drag free drift in the swirling currents.
I watch the end of my fly line to detect strikes but you may prefer to use a small
strike indicator.
























This is our
"Perfect Fly" Pale Morning Dun Nymph. Notice the EMU feather
behind the thorax. It is added to imitate the large gills of the nymphs.

Copyright 2009 James Marsh