Colorado has amazing fly fishing. There are so many places west of I-25 to wet a fly that you could go fishing for years and not touch all the water. But one area is especially great for fly fishing, which is the Poudre Canyon outside of Fort Collins.
The Poudre canyon starts at a spot called Ted’s place and goes west to the top which is Cameron pass. The Cache La Poudre River flows all through the canyon. At the mouth of the canyon the water is deeper and slower. It is full of rainbow trout and a few browns. The wet fly fishing is wonderful year around.
As you move up the canyon fishing on the lower half is great the scenery is beautiful. Most of the year the river is gentle and wade able. Most of the shoreline is open enough that you don’t have to worryabout snags.
From the town of rustic to the top is the best fishing. Most of the fly fishing is done with barbless fish hooks. Small nymphs will catch huge rainbows, but be sure to check the fishing regulations for size limits. Above the fish hatchery a few miles is Joe Wright reservoir. This fairly large body of water is great to belly boat in and fish for trout as well as the few remaining graylings.
A good steep hike above Joe Wright is Zimmerman Lake. This great little lake used to be stocked with graylings but is now stocked with a cutthroat subspecies called a greenback. These are great to fish for and at sundown will go crazy for dries.
At the top of the pass is CameronLake. Thislake was drained a few years ago and has been repaired and re-stocked. It has great fly fishing along the shore, but is even better in a belly boat.