Colorado River Upper Reaches: Spring Runoff Nymphing Through Midday

This is Artificial Lure with your Colorado River fishing report for the upper river in Colorado. We don’t worry about tides up here – the Colorado is a freestone and tailwater mix, so flows and weather matter more than anything. Overnight temps dropped into the upper 30s, and we’re looking at a clear, cool morning warming into the low 70s by mid‑afternoon with light winds. Expect a mix of sun and a few high clouds, which should keep fish comfortable and feeding steadily. Sunrise came early over the canyon walls and you’ll lose useful light around sunset behind the ridges a bit before actual dark. Flows on the middle river reaches have been bouncing with runoff but are still fishable where side creeks aren’t blowing mud. Clarity is a greenish foot to two feet in many stretches—perfect for nymphing and streamers, a little tough for picky dry‑fly work but not impossible if you find softer edges. Trout activity has been best mid‑morning through early afternoon once the water ticks up a few degrees. Rainbows and browns in the 12–16 inch range have been the main players, with a few bruisers over 18 showing up tight to structure where the current softens. Anglers have been reporting steady numbers rather than big numbers—work for them and you’ll get rewarded. Bug‑wise, this is classic late‑spring Colorado River. Blue‑winged olives are still around on cloudy spells, and we’re seeing more caddis and early PMDs sliding into the mix. Stonefly nymphs are moving, even if you don’t see many adults yet. A two‑fly nymph rig has been the ticket: think a size 8–10 stonefly or tungsten worm up top with a size 16–18 baetis, pheasant tail, or caddis pupa behind it. Use enough weight to tick bottom along softer seams, drop‑offs, and the inside of bends. For those who prefer conventional gear, small gold or silver spoons, 1/8‑oz marabou jigs in black or olive, and minnow‑style crankbaits in brown and rainbow patterns have been taking trout and an occasional smallmouth in the slower, deeper runs. With runoff pushing fish toward the banks, cast tight to shore, then work your lure just off the current break. Best baits for those allowed to use them have been nightcrawlers drifted under a small float and natural‑colored salmon eggs rolled along the bottom. Keep your presentations subtle; the water’s got some color but not chocolate milk, so heavy hardware can put fish down in the calmer pockets. A couple of hot spots to consider: First, the stretch near Glenwood Springs where the Colorado meets the Roaring Fork. That confluence has been producing mixed bags: solid browns, chunky rainbows, and the odd whitefish. Focus on the first big soft water below the junction and the slower shelf along the opposite bank. Second, the broader runs and riffles near the Pumphouse to State Bridge corridor. Even with runoff, the inside bends and side channels there are fishing well if you’re willing to walk a bit. Look for milky main current sliding past clearer side water—that color change line is a conveyor belt for food and trout. Overall, fishing isn’t automatic, but if you time your outing around the late‑morning warmup, lean on nymphs and smaller, natural streamers, and work methodically through soft structure, you can put plenty of healthy Colorado River fish in the net today. Thanks for tuning in, and don’t forget to subscribe for more reports and on‑the‑water updates. This has been a quiet please production, for more check out quiet please dot ai. Great deals on fishing gear https://amzn.to/44gt1Pn