Copyright 2013 James Marsh
Hatches and Flies for the East River, Colorado
During April and for about half of the month of May, Blue-winged Olives will hatch. They
are bi-brooded and will hatch again from about the middle of July through the month of
Green Drake mayflies hatch during the month of July and on into the first part of August,
depending on the part of the stream you are fishing. The Red Quills hatch during July and
The most important mayfly is the PMD or Pale Morning Dun. They can hatch on the East
River over a long period of time, from about the middle of June on into September.
From about the middle of April through the first two weeks of May, the Little Black Caddis,
or Brachycentrus caddis hatch. This is a good hatch that you can fish almost like a mayfly
Form the first of June through the month of September, you will find hatches of different
species of caddisflies called Spotted Sedges. It is very difficult to tell one from the other so
it appears the same caddisfly hatches over a long period of time. They are the most
plentiful species of caddisflies on the East River.
Little Short-horned Sedges, a small caddisfly about a hook size 20, hatches in large
quantities during May and June. These often crawl up your waders.
There are some great stonefly hatches on the East River. Salmonflies hatch during the
month of June and into the first week of July. Golden Stoneflies hatch during the last week
of June and most of the month of July. Little Yellow Stoneflies hatch from about the middle
of July through August.
The months of July, August and September are terrestrial months, meaning ants,
grasshoppers and beetles become important. Imitations of these bugs may be the key to
success during the summer when the hatches begin to slow down.
Minnow, baitfish and sculpin are present in the East River in good quantities, meaning
streamers work just about anytime the water is slightly off color, or during low light
conditions such as early and late in the day or during heavy, overcast skies.
If you fish during the winter months you will probably need to fish imitations of midge
larvae, pupae and adults to catch trout. These tiny insects hatch throughout the year.
If you haven't already done so, please give our "Perfect Flies" a chance to perform for you.
We have specific imitations of just about everything trout eat including all of the above
insects in all stages of their life.
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