Colorado River - Below Shadow Mnt Reservoir | Overview
Just below Shadow Mountain Reservoir, the Colorado River begins its journey as one of the West’s most iconic waterways. In this upper section near Granby, the river flows clear and cold, fed by releases from the reservoir and the surrounding snowmelt of the Rockies. It’s a diverse and productive stretch of water, offering everything from riffles and pocket water to deep, slow pools that hold strong, healthy trout. This section of the Colorado is home to impressive brown and rainbow trout populations, with fish that grow fat on a steady diet of midges, mayflies, caddis, and the occasional terrestrial. The mix of public access points and scenic meadow settings makes it one of Grand County’s must-fish destinations, especially during late spring and early fall when flows and clarity align perfectly.
Colorado River - Below Shadow Mnt Reservoir – Discharge (CFS)
Current Conditions
January 2026
Flows below Shadow Mountain have dropped to around 20 CFS, and winter has tightened its grip on this stretch. Many sections—especially farther downstream from the dam—are now largely iced over, limiting fishable water. Where open water exists, nymphing remains the best option. Small stoneflies, baetis and perdigon patterns are solid attractors, paired with a size 20–22 midge fished slowly through deeper seams. Be mindful of seasonal closures on portions of the river as regulations change through the winter. Contact Winter Park Flyfisher for the latest conditions, access details, and fly recommendations before heading out.
Recommended FLies
- NYMPHS: Pats Rubber Legs (coffee, olive) 10-14, Flashback Pheasant Tail 16-18, 2 Perdigons 16-18, Thread body Frechie (olive) 16-18), Poison Tung 18, Mercury Black Beauty size 18-22, Zebra midge black or olive size 18-22, Barr's Emerger BWO 18-22, Copper Ribbed RS2 20-22
- DRIES: Para Wulff 18-24, Parachute Adams 18-24, Chubby (gold) 8-14, Griffith's Gnat 18-22
- STREAMERS: - Leach (black, olive), Rusty T, Double Thin Mint, Goldie
