Skip to content

Blue River – Below Green Mountain Fly Report (Sep 2 2025) – PMDs, Tricos & Hopper Flare-Ups

  • September 2, 2025
Tymothe Meskel

Blue River Fly Fishing Report near Green Mountain Resevior

Blue River - Below Green Mountain Reservoir - Fly Fishing Report – Sep 2, 2025

The lower Blue is delivering cold, clear, tailwater magic right now. With flows between 315–400 CFS and water temps in the low 50s °F, fish are active from mid-morning through early afternoon. PMDs lead the hatch, with Tricos, Caddis, and terrestrials joining the show. Crowds are moderate, clarity is excellent, and this stretch is outperforming many mere freestones right now.

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: ~315–400 CFS — ideal tailwater levels
  • Water Temp: Low 50s °F mid-morning
  • Air Temp: Mid-50s to high 70s °F
  • Clarity: Excellent (3+ feet visibility)
  • Best Times: 8:30 AM – 1 PM
  • Fishing Pressure: Moderate

Listen to the Podcast

Decoding_the_Blue_River__Fly_Fishing,_Tailwater_Magic,_and_Conservation_in_Colorado

 

 

Blue River Hatch Chart – Below Green Mountain

Month PMDs Tricos Caddis Midges Ants/Beetles Hoppers
June ✅✅ ✅ ✅✅ ✅✅ ✅ ✅
July ✅✅✅ ✅✅✅ ✅✅ ✅✅ ✅✅ ✅✅
August ✅✅ ✅✅✅ ✅ ✅✅ ✅✅✅ ✅✅✅
Sept ✅ ✅ ✅ ✅ ✅ ✅

 

 

Flies to Try – Blue River

Nymphs

  • TDJ Sunken Trico (20–22)
  • Sparkle Wing RS2, gray (20–24)
  • Barr’s PMD Emerger (18–20)
  • Frenchie (18)
  • Pheasant Tail (18–20)
  • UV Midge, black (20–22)
  • Juju Baetis, gray (20–22)

Dries

  • CDC Biot Trico Spinner (22)
  • Matthews Sparkle Dun (BWO, 18–20)
  • Amy’s Ant (14)
  • Black Beetle (16)
  • Parachute Hopper (12–14)
  • X-Caddis (14–18)

Streamers

  • Mini Dungeon, olive
  • Baby Gonga, brown/olive
  • Thin Mint (8–10)
  • Slump Buster (natural or black)

 

 

 

Tactical Tips

  • Morning: Kick off with Trico spinner drifts, then transition to PMD emergers under the surface.
  • Midday: Terrestrials like ants and beetles along margins bring bites—keep casts tight.
  • Presentation: Long leaders, 6X fluoro, and soft landings win here.
  • Crowd Strategy: Moderate pressure—move distances, stay stealthy, fish fresh water.

Access Points

Spot Why Fish It Rating
Heeney Road (south) Classic tailwater with solid access ⭐⭐⭐⭐
Canyon Put-In Zones Pocket water and seam runs ⭐⭐⭐
Floatable Sections Best before midday for streamer work ⭐⭐⭐⭐

Note: North Heeney Road is closed weekdays—plan your access accordingly.

 

20241016_133341-1

 

FAQs – Blue River Below Green Mountain

Q: What’s the prime hatch?
A: Mid-morning PMDs are most consistent; Tricos rise early, with caddis filling gaps.

Q: When’s the best time to fish?
A: 8:30 AM to 1 PM is peak; later, fish go deep or stall as temps climb.

Q: Streamers worth a throw?
A: Yes, especially rainbow-toned patterns like Baby Gonga in early morning shadows.

Q: Is wade access easy?
A: Be cautious—flows above 300 CFS can get technical. Stick to marked wade zones and rubber-soled boots.

Q: Best rod setup?
A: 9’ 5-weight with a 12–14 ft leader gives finesse and control.

Q: Any special regulations?
A: No guiding allowed below Green Mountain reservoir. Stay public-only and respect access restrictions.

 

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.