Colorado River – Kremmling Fly Fishing Report (Sept 4, 2025) – Cranes, Quills & Hoppers

  • September 4, 2025

 

Welcome to the Upper Colorado Near Kremmling, where the trout are hungry, and the water’s as wild as your casting arm! Flowing at a mellow pace between Kremmling and Parshall, this section is a fly fisher’s dream with its mix of slow runs, gentle riffles, and deep pockets perfect for sneaky nymphing or swinging streamers.

 

Upper Section Near Kremmling - Wide expanse of the Colorado River near Kremmling flanked by rolling hills

 

Colorado River – Upper Basin (Kremmling Area) Fly Fishing Report – September 4, 2025

The upper Colorado near Kremmling is dialed in. Flows are running around 950 CFS, with water temps holding in the upper 50s °F, crystal-clear clarity (about 2–3 ft visibility), and active hatches including caddis, red quills, crane flies, and Tricos. It’s prime time for hopper-dropper action along banks, small emerger rigs through seams, and subdued streamer work in deeper water. Perfect today for stealthy, technical dry-dropper tactics in scenic tailwater terrain.


Conditions Summary

rise beyond fly fihsing company in denver colorado a guide rating for a stream. Good is 5 trout. This rating is for 3 trout. So good or semi challenging fishing conditions.

  • Flow Rate: ~950 CFS
  • Water Temp: Upper 50s °F
  • Air Temp: Mid 70s °F and warming
  • Clarity: Very clear, 2–3 ft visibility
  • Best Times: 7 AM – 1 PM for hatches; 5–7 PM for terrestrials
  • Fishing Pressure: Moderate; access is easy but fish are dispersed

Listen to the Podcast!

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18:06

 

 

 



Colorado River Hatch Chart – Kremmling

Month Midges BWOs/PMDs Tricos Caddis Red Quills Crane Flies Terrestrials
July Present Present Present Present Emerging Minor Some
August Present Present Present Present Strong Present Strong
Early Sept Lingering Light Present Present Present Present Active

 

 


Flies to Tie On

Nymphs & Emergers

  • Sparkle Wing RS2 (gray/olive, 18–22)
  • Juju Baetis or Top Secret Baetis (20–22)
  • Mercury Pheasant Tail (18–20)
  • Trico Spinner or Sparkle Dun for emergers (22–24)

Dries

  • CDC Biot Trico Spinner (22)
  • Elk Hair Caddis (16)
  • Stimulator (size 14–16)

Terrestrials / Hopper-dropper

  • Ant or Beetle patterns (size 16–18)
  • Hopper atop small baetis dropper combos

Streamers (low-light)

  • Slump Buster, Thin Mint, or Woolly Bugger—especially in deep seams

 

 

 


Tactical Playbook

  • Morning: Tight dry-dropper drifts through riffles; watch for Trico and quill activity along shaded banks.
  • Midday: Switch to hopper-dropper setups—ants/beetles or foam patterns are deadly near structure.
  • Evening: Caddis and crane fly hatches hold fish; streamers can produce in pockets.
  • Gear: 12–14 ft leaders, 5X–6X tippet, delicate presentation.
  • Access: First light to mid-day is best—fish are visible, but wary.


Access Hotspots

Stretch Why Fish There Rating
Paul Gilbert / Kremmling Banks Easy access, classic riffles & holes ⭐⭐⭐⭐
Pumphouse / Radium Area Float/pocket water with deeper runs ⭐⭐⭐⭐
Middle Canyon (Byers to Dotsero) Scenic, technical, less human traffic ⭐⭐⭐⭐

FAQs – Upper Colorado Near Kremmling

Q: What’s the most productive hatch right now?
A: Red quills and caddis mid-morning, with Tricos and crane-flies showing in the evening.

Q: Are hopper-dropper rigs working?
A: Absolutely—ants and beetle patterns clustered over emergers are getting aggressive takes.

Q: Streamers worth throwing?
A: In low-light or deep pockets—yes. Stealth and slow retrieves work best.

Q: How technical is the water?
A: Very. Clear water and spooky trout demand precision drifts and leader finesse.

Q: Wade or boat?
A: Wading from multiple access points works well; floating a bonus but requires river knowledge.

 

 

Animas River (1600 x 900 px) (12)

 

RIVER WHISPER | SPOT FINDER | NEW!

Where to fish today! Tired of fly shops feeding you outdated, half-baked reports just to push gear? Us too. That’s why River Whisper exists—to cut through the noise and give you real, up-to-date, no-BS fly fishing reports for Colorado.

 

 

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