Tailwater · Mixed · Colorado

South Platte — Cheesman Canyon

Cheesman Canyon is the one that humbles people.

Species

A proper day on the water

Low and clear — careful approach country. Stay small, stay accurate.

75% confidence in this read
Water temperature for brown trout
Cool — slow
9°C est.ideal 1016°C
0°14°28°
Why this score · for brown trout
  • Temperature8228% weight
  • Flow8022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Insect activity6212% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
9.0°C
Estimated
Clarity
Clear
Air temp
20°C
Wind
NE 19 km/h
Gentle breeze
Pressure
1016 hPa
Rain · 48h
0.5 mm
No meaningful rain
Rain · ahead
2.9 mm
Light rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Good — water clarity is right today, though time of day could be better.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Permits & access
Permit required — see local rules.
  • Colorado licence
  • Gold Medal, flies/lures-only, catch-and-release
  • Verify CPW regulations.
Directions
About this water

Cheesman Canyon is the one that humbles people. It's a hike-in granite gorge below Cheesman Dam holding wild, educated browns and rainbows in water so clear it feels indecent, and the fish have seen every fly ever tied. You sight-fish, you go small, you use tippet you can barely see, and you accept that some of the best fish in Colorado are going to refuse you politely all afternoon. It's catch-and-release flies-and-lures water, technical to the core, and worth every bit of the walk in.

Under the surface

Cheesman Canyon is the South Platte's masterpiece and its hardest exam. Below Cheesman Dam the river drops into a granite slot of the Pikes Peak batholith — great rounded domes and boulders of pale decomposing granite — and runs as a clear, cold, technical tailwater that has humbled more good fishermen than it has pleased. The trout are wild, abundant and famously educated, holding in glassy pools and pocket water where a drag-free drift is a theoretical concept rather than an achievable one. You hike in; there are no roads. The bed is granite boulder and gravel, the water low and clear most of the year, every fish visible and every fish skeptical. Wading is rock-hopping among slick granite. Cheesman is where Colorado anglers go to be reminded that they are not as good as they think they are, and they keep going back.

Wading: Slick granite boulders, hike in only

  • Mixed
  • Confined
  • Step pool
  • Pool riffle
Seasons & zones
  • Trout1 January → 31 December
Other water nearby · 3