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


Fly Fishing Yellowstone - Pale Evening Dun
The name Pale Evening Dun indicates the mayfly might hatch during the
evening. We haven't found that to be the case. Maybe it should be called the
Pale Afternoon Dun. When the air temperatures stay warm enough during the
late summer to keep the water in the high fifties and low sixties, the hatch isn't
going to take place. The water needs to get down into the mid fifties. When that
happens in the late summer in Yellowstone National Park and you are fishing
the fast, pocket water area of a stream you may see some late afternoon
hatches of the Pale Evening Duns. Since the water isn't very warm, the duns
tend to stay on the surface of the water for a few seconds. That means the trout
are going to eat the duns as well as the emergers.

Fish our "Perfect Fly" Pale Evening Dun in the quite water along the edges of
the stream and in the pockets behind boulders and rocks.  Most of the time this
hatch occurs in pocket water. If not, it is fast flowing smooth water with some
obstructions, usually small boulders or large rocks. The shallow water around
the banks is another type of place that these mayflies tend to hatch. In the
smooth water of some of the fast flowing streams like the Yellowstone River, It is
best to watch for trout taking the duns and then fish to individual fish. Trout are
very spooky in the shallow water where these duns are normally found. This
usually requires long 5X or 6X tippets that are presented very delicately. This
can be rather technical fishing in many cases but it is an effective way to pick off
some nice trout in the late summer season.

Copyright 2009 James Marsh