This is going to be one of the few river options for a bit as its a tailwater.
Expect nymphing to be the most productive. Flows are dropping, but still up, and fishing has been pretty good. Attractor nymphs with a midge dropped off are a good option, or bust out the Euro nymph rig,
Midges 18-24: Sidewinder Midge Pupa, Tavs Big Mac, Black Midge Pupa 18-22.
Mayfly Nymphs: Thread Baetis, Jujubaetis, Split Back BWO, Killer Mayfly 18-24. Juans Sniper Baetis 20-24.
Attractors: San Juan Worms, Annelids, Pheasant Tails 16-20, Orange Crush Jig 14-16, Duracell 12-14, Frenchie 12-16, Tung Soft Spot 12-16.
Uncompahgre River at Pa Co Chu Puk
(409cfs at Pa Co) Flows will increase soon, but for right now, the Unc is fishing terrific with deep nymph rigs. 400cfs is pushy, but the river still corresponds to most of the structure in the streambed. Deep seamlines and heavy eddies are good places to find the Uncompahgre's sizeable trout. Nymph deep with small stuff. Every version of a midge or mayfly nymph is in play. San Juan Worms, egg patterns and small streamers on the dead drift are also high percentage. Wade carefully and bring your net!