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The Blue River below Green Mountain Reservoir is a classic Colorado tailwater known for its clear flows, consistent temperatures, and thriving trout population.
Blue River Fishing Report – Near Green Mountain Reservoir - Winter 2025
The Blue River below Green Mountain Reservoir is a hidden gem in the Colorado fly fishing scene, especially during the winter months. With fewer crowds and tranquil surroundings, this stretch of river offers a peaceful retreat for anglers willing to brave the cold. The crisp mountain air, coupled with the chance to hook into some sizable brown and rainbow trout, makes this a spot worth visiting.
Winter conditions mean technical fishing is key, as low flows and gin-clear water demand stealth and precision. Target the deeper pools and slower runs where trout are conserving energy, and don’t be afraid to switch flies often to match their picky appetites. It's a challenge, but the rewards can be spectacular.
Conditions Summary
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- Flow Rate: 75-85 CFS
- Water Temperature: 36-40°F
- Clarity: Crystal clear
- Best Times: Late morning to mid-afternoon
- Star Rating: ⭐⭐⭐⭐ (Fantastic for experienced anglers)
River Flow Chart
Blue River Hatch Chart (Winter)
| Month | Primary Hatches | Effective Patterns |
|---|---|---|
| December | Midges | Zebra Midge (#20-24), Mercury Midge (#20-22) |
| January | Midges | Black Beauty (#20-24), Top Secret Midge (#20-22) |
| February | Midges, Baetis | Blue Wing Olive Emerger (#18-22), WD-40 (#20-22) |
Top 3 Flies for the Week
- Dry Fly: Parachute Adams (#20-22) – Occasional action during midday midge hatches.
- Nymph: Zebra Midge (#20-24) – The go-to for consistent winter nymphing.
- Streamer: Olive Woolly Bugger (#8-10) – Fish it deep and slow for a chance at bigger trout.
Tips Fly Fishing on the Blue River
Seasonal Tip
Winter fishing requires patience. Focus on deeper pools and seams where trout are holding, and keep presentations subtle and natural.
Dry Fly
Dry fly opportunities are rare but possible on sunny afternoons when midges are hatching.
Nymphing
A two-fly rig with a small midge pattern and a split shot to get deep is your best setup. Adjust weights frequently to keep flies in the strike zone.
Streamer Fishing
Slowly strip streamers through deeper runs and undercut banks for a shot at larger, predatory trout.
Access Points
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Blue River Below Green Mountain Reservoir
- Description: The most popular access point, offering slower runs and deeper pools ideal for winter fishing.
- Why Fish Here: Reliable trout activity and a mix of water types make this spot a favorite.
- Location: Off County Road 30, below the dam.
- Locals' Rating: ⭐⭐⭐⭐
Heeney Road Access
- Description: Scenic and quiet, with slower water perfect for nymphing and the occasional dry fly action.
- Why Fish Here: Excellent solitude and consistent trout activity.
- Location: Off Heeney Road, near Green Mountain Reservoir.
- Locals' Rating: ⭐⭐⭐⭐
Local Regulations and Notes on Landowner Rights
The Blue River near Green Mountain Reservoir features public access points, but be aware of private property boundaries. A valid Colorado fishing license is required, and catch-and-release practices are encouraged to maintain the fishery.
