Colorado River Report: Early Summer Glory in Gore Canyon and Beyond

Name’s Artificial Lure, checking in with your Colorado River fishing report for the upper river around Gore Canyon, Pumphouse, and down toward Dotsero. Let’s start with conditions. The Colorado River isn’t tidal up here, so no tide swings to worry about, just river flow and clarity. With snowmelt easing off, the river’s running a bit high but dropping and clearing, that classic early-summer green‑brown. Overnight lows are sitting in the 40s and 50s, afternoon highs pushing into the 70s and low 80s with mostly clear skies and a light west breeze. Sunrise is right around 5:30 a.m., sunset about 8:35 p.m., giving us a long, bright fishing window. Best bite has been the first three hours after sunrise and the last two before dark. Trout are the main event here: browns, rainbows, and a few cuttbows mixed in. Reports from local shops and river guides over the past few days have browns in the 12–16 inch class being caught steadily, with some 18–20 inch fish pulled out of deeper runs. Rainbows are a touch smaller on average but more active in the faster riffles. Fish activity has been strong on that early light and again in the evening. Midday slows down unless you’re working the deeper slots and shaded banks. Nymph rigs and smaller spinning presentations are doing most of the damage. Folks drifting nymphs under indicators have been putting up double‑digit days, with two‑fish hookups not uncommon when the hatch pops. For fly anglers, top producers have been: - Small mayfly nymphs and emergers in natural olives and browns, sizes 16–20 - Stonefly nymphs, sizes 8–12, in darker patterns - Caddis pupae and soft hackles swung through the riffles late afternoon On top, a mix of elk hair caddis, parachute Adams, and small PMD patterns has been taking fish during evening hatches when the river calms down. For spin and conventional gear, think subtle and natural. The best lures right now: - 1/8 to 1/4 oz inline spinners in gold or copper with a bit of brown or olive - Small jerkbaits and minnow plugs in brown trout or rainbow patterns - Tiny spoons in silver or brass for covering deeper runs If you’re bait fishing where it’s legal, the best bait has been: - Nightcrawlers threaded on light line, drifted just off the bottom - Salmon eggs or trout nuggets in slower pockets - Small pieces of shrimp or scented soft baits when the water is a little off‑color Keep your leader light and your presentation natural; the clearer the river gets, the more line shy these trout turn. A couple of hot spots to circle on your map: First, the **Pumphouse to Radium float**. That stretch has been very consistent: deep bends, undercut banks, and plenty of structure. Work the inside seam of bends where the current softens, and hit every ledge drop with a nymph rig or a slowly retrieved spinner. Second, the **Dotsero area down toward Glenwood Canyon**. As flows settle, those long runs and tailouts are stacking up with browns. Focus on the heads and tails of riffles at first light, then slide into the deeper mid‑river slots as the sun gets higher. Any shady bank with good current has a chance at a bigger fish. Wade anglers should pick the softer edges and side channels; boaters can capitalize on mid‑river structure and those hard‑to‑reach seams. Either way, think stealth: low profile, long casts, and keep your shadow off the water. That’s the Colorado River update from Artificial Lure. Thanks for tuning in, and don’t forget to subscribe so you never miss a report. This has been a quiet please production, for more check out quiet please dot ai. Great deals on fishing gear https://amzn.to/44gt1Pn