Arkansas River:       

Pueblo Tailwater

Weekly Overview:

July 6, 2020: 


  • Difficulty: Intermediate

  • Flows on the Ark below the Pueblo Dam continue to drop making for improved fishing conditions. Water clarity has improved and there is more accessible water. Trout here are feeding consistently throughout the day with a variety of new bug life. That being said, high heat and low air pressure this week will make for a generally lethargic trout. The mornings and later evenings will produce the most consistent results. Be prepared to fish some dry and dry dropper rigs as hatch activity and surface action has picked up. Focus on the banks and outer seams to start, but do not discount the deeper runs and pools as trout will hold deep this week. Come prepared with some PMDs, green drakes, caddis and yellow sallies. Otherwise, nymphing with bigger lead flies like a Pat’s, leech or Rainbow Warrior followed by one or more smaller and imitative midge, baetis or caddis patterns will produce. 

  • Ideal Days to Fish: Monday through Wednesday

  • Suggested Flies:

    • Sub-surface: RS2 (#20 - 22), Barr's Emerger (#22), Chocolate Foam Wing Emerger (#20 - 22), Stalcup's Baetis (#20 - 22), JuJu Baetis (#20 - 22), WD 40 (#20 - 22), Bead head Iron Sally, Caddis Candy Prince Nymph (#18 - 22), Pheasant Tail (#18 - 20), Hare's Ear (#18 - 22), red Copper John (#18 - 20), Black Beauty (#22 - 24), Zebra Midge (#18 - 20), Top Secret Midge (#22 - 24), Miracle Midge (#24-26), Red Midge Larva (#24-26), Electric Caddis (#16 - 18), Pats Rubber Legs (#10 - 12), Rainbow Warrior (#20 - 22), Pine Squirrel Leech, Wooly Buggers, and Squirmy Wormy.

    • Surface: Parachute Adams (#20 - #22), Griffiths Gnat (#24 - 26), Elk Hair Caddis (#16 - 18), and Amy's Ant (#10), Yellow Sally, Chubby Sally , PMD Thorax Dun, Parachute PMD, Resting Caddis, X2 Caddis, Elk Hair Caddis

      • Need flies for your trip? FlyCast has collaborated with our friends at Anglers All ​to package a dozen flies that are hot on the Arkansas River right now - Click here for hand selected flies


Detailed River Info:


The Arkansas River below Pueblo Reservoir is a tailwater that flows through the town of Pueblo. The city of Pueblo has made significant river improvements over the last several years, making this stretch of the Arkansas a productive and highly sought after fly fishing destination, especially in the winter. The river consists of deep pools, slow runs and riffles. The insertion of rock weirs created additional pools where trout of various sizes feed and hold. Compared to other tailwaters in Colorado, the Pueblo tailwater is generally more off colored throughout most of the year. This makes sight fishing more difficult, requiring anglers to diligently fish deep pools and runs. Anglers will have the opportunity to catch brown and rainbow trout ranging from 8 – 20 + inches”.  



This stretch of the Arkansas River is best fished with a nymph setup but does provide for exceptional dry fly opportunities. During the winter, anglers itching to fish a hatch and toss dry flies should check out this stretch as the warmer weather in Pueblo aids in more consistent hatch activity compared to the other tailwaters in Colorado. This stretch experiences all the major Colorado hatches including midges, baetis, caddis and stoneflies. Terrestrials are also present during the summer and early fall. Trout primarily hold and feed in the deep pools and runs making a heavy nymph setup an ideal tactic. Along with nymphs, leech and worm patterns are highly effective. In the presence of a hatch, trout will rise in the tailouts of deep pools as well as the slow riffles. Throughout most of the year, 4x and 5x tippet is sufficient. However, during periods with low flows (30 cfs – 100 cfs) and/or high water clarity, 6x and 7x tippet may be necessary. 


River Access:

Located only 2 hours from Denver, the Arkansas River below Pueblo Reservoir is an easy trip to make. Once in Pueblo, drive west through downtown and continue west for a few miles. Multiple parking lots along this stretch of river make parking easy and provide a good opportunity to bounce around to different sections throughout the day. If you’re not interested in getting in and out of the car, there is a bike path along the river that makes exploring the river easy. Be aware, a $7 entrance fee is required if you access the river near the dam. 

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