If you’re a weekend warrior, bless your heart. The Colorado has been packed full of fisherman and float tubers. Best time to fish the Upper C are weekdays as you can avoid the crowds a little bit. With that being said, the fish have responded well to the large crowds and have been feeding on smaller mayflies and midges.
A few sporadic PMD hatches have been seen coming off mid day and the fish have taken note. Your size 18 PMDs have been producing fish along with the smaller BWO and midge patterns. Tiny and shiny is a good rule of thumb. Biot PMDs, and Redemption BWOs have been producing good fish. Not a bad time to be wading or floating the Colorado.
Report Date: May 13th, 2019
The colder weather has caused the flows on the Upper Colorado to drop, which has improved clarity for the time being. The current hatches consist mostly of Blue Wing Olives and Midges, but we have started to see some caddis hatches happening in the afternoons. For a dry fly rig, I would throw a medium sized caddis as a sighter, followed by a smaller Blue Wing Olive dry. A nymph rig with a big stonefly up front with a caddis or Blue Wing Olive trailer will probably be the most productive method. One of the best ways to target the larger browns on the Upper Colorado is by throwing large, dark, articulated streamers. If you get a window of nice cloud cover, don’t be afraid to bust out the big bugs!
Colorado River Access Points