Fly Fishing Stream Conditions Report: Crystal River

This year: The Crystal River is experiencing critical low-water conditions, with flows running around 100 CFS in Carbondale. Upstream near Redstone, the USGS gage above Avalanche Creek is averaging 66 CFS, with flows bouncing between 59 and 75 CFS. While the water remains clear, water temperatures are well into the danger zone for fragile trout. Because of these high temperatures and flows that are roughly 10% of the annual average, the entire stretch of the river from Mile 64 downstream to Carbondale is under a voluntary 24-hour fishing closure. For anglers fishing open water upstream, success requires skipping the shallower, unproductive water and focusing directly on deeper, oxygenated runs where trout are holding. Please carry a thermometer, fish early, and stop angling if water temperatures approach 65 degrees to help protect the resource. Subsurface setups are the most effective approach right now. Consider drifting a San Juan Worm, a Jigged Pheasant Tail, a classic 20 Incher, or a Hare's Ear Soft Hackle through the faster, well-oxygenated pocket water.

Prior years: The Crystal River is experiencing low water conditions, with flows dropping down to 18 cfs and even below 10 cfs in the lower sections around Carbondale, while holding at 64 cfs further up near Redstone. Due to these low flows, the lower river below Mile Marker 64 in Carbondale is closed to fishing. Colorado Parks and Wildlife has also implemented a voluntary fishing closure in response to these extreme low flow conditions on the lower river. Fortunately, the remainder of the river up to Redstone and Marble remains open and is fishing quite well. The water is clear, and the higher you go, the better the conditions. Focus your efforts on the faster, highly oxygenated water where fish are concentrated, skipping the slower, flat stretches. We are in the peak of terrestrial season, making hopper-dropper rigs highly effective. Hatch-matching anglers will find success with caddis, Pale Morning Duns, and Blue Wing Olives. When fishing subsurface, small beaded nymphs like orange quill Perdigons, Frenchies, Pheasant Tails, and Prince nymphs are excellent choices, alongside stonefly nymphs fished through the quicker pocket water.