Cheesman Canyon is the most technical stretch of the South Platte River near Denver, especially in winter. Low clear water, heavily pressured trout, and steep canyon walls create a fishery that rewards patience and precision.
Fishing
Fishing in Cheesman is improving, but it’s still one of the most technical sections on the South Platte. Flows remain controlled, but upstream changes across the system are starting to influence consistency.
There is a real midday window now, with more fish feeding than a couple weeks ago, but nothing about this stretch is forgiving. If your drifts aren’t clean or your depth is off, you’ll see fish and not touch them.
Cheesman Micro-Drift Precision Rig
- Indicator: Micro yarn (low profile)
- Lead Fly: Juju Baetis #20
- Dropper: Black Beauty #22
- Weight: Minimal (micro shot only if needed)
- Spacing: 14–18 inches
- Leader Length: 10–12 ft
- Target Water: Slow seams, depth shelves, and glassy transitions
Still early spring patterns. Fish deeper early, adjust slightly higher as temps rise.
Possible, but technical and short-lived. Don’t rely on it.
Primary method. Light tippet, small flies, perfect drifts.
Limited but can work in deeper structure during lower light.
Gill Trail Access | 📍 Locals Rating ⭐️⭐️⭐️⭐️⭐️ 5.0
Classic canyon entry with access to prime technical water and holding fish.
Cheesman Canyon Trailhead | 📍 Locals Rating ⭐️⭐️⭐️⭐️⭐️ 5.0
Main access to the canyon with consistent runs, seams, and deeper structure.
Lower Canyon Stretch | 📍 Locals Rating ⭐️⭐️⭐️⭐️ 4.5
Less pressured water with strong holding lies and transition zones.
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Regulated by Colorado Parks and Wildlife
- Artificial flies and lures only
- Catch and release enforced in most sections
- Barbless hooks recommended
- Respect all posted boundaries and access points
Is Cheesman Canyon fishing good right now?
Yes, but it’s technical. Fish are feeding midday, but presentation has to be perfect.
What flies should I use in Cheesman Canyon?
Small midge and baetis patterns like Top Secret Midge, Juju Baetis, and RS2 are key.
What is the best time of day to fish Cheesman Canyon?
Late morning through mid-afternoon offers the most consistent activity.
Where should I fish in Cheesman Canyon?
Focus on deeper runs, seams, and slower glides where fish can hold comfortably.
Is Cheesman Canyon good for beginners?
No. This is highly technical water better suited for experienced anglers.
Do I need a guide for Cheesman Canyon?
Not required, but strongly recommended if you want to shorten the learning curve.