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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. Flowing through rugged canyons and picturesque valleys, this stretch of the Blue offers anglers excellent opportunities to target wild rainbows and browns in a tranquil, scenic setting.
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Blue River Fishing Report – Near Green Mountain Reservoir – December 2024
The Blue River near Green Mountain Reservoir remains a winter haven for fly anglers seeking solitude and striking scenery. While flows are on the lower side, the clear and cold water sets the stage for technical fishing. With trout concentrated in deeper runs and pools, precise nymphing is the name of the game. This section is a treat for anglers who love a challenge and don’t mind bundling up against the chill.
Dry fly activity is sparse in the winter, but nymphing rigs with small midges and Blue Wing Olive patterns are performing well. Streamers can still coax the occasional aggressive bite, particularly from larger trout looking for an easy meal. Dress warmly, pack some hand warmers, and get ready for a rewarding day on the water.
Conditions Summary
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- Flow Rate: 60-90 CFS
- Water Temperature: 38-42°F
- Clarity: Crystal clear
- Best Times: Late morning to mid-afternoon
- Star Rating: ⭐⭐⭐⭐ (Great for those willing to brave the cold)
River Flow Chart
Blue River Hatch Chart (Near Green Mountain Reservoir)
| Month | Primary Hatches | Effective Patterns |
|---|---|---|
| December | Midges, BWOs | Zebra Midge (#20-24), Blue Wing Olive Emerger (#18-22) |
| January | Midges | Black Beauty (#20-24), WD-40 (#20-22) |
| February | Midges, BWOs | Top Secret Midge (#20-22), Parachute Adams (#18-20) |
Top 3 Flies for the Week
- Dry Fly: Parachute Adams (#20-24) – On warmer afternoons with sparse midge activity.
- Nymph: Zebra Midge (#20-24) – A must-have for targeting trout in deeper pools.
- Streamer: Olive Woolly Bugger (#8-10) – Best for working slower, deeper runs.
Tips Fly Fishing on the Blue River
Seasonal Tip
Focus on slower water and deeper runs where trout conserve energy during the colder months.
Dry Fly
Opportunities are limited, but keep an eye out for sporadic midge hatches on warmer days. Use small, delicate presentations.
Nymphing
Run a tandem rig with a Zebra Midge and Blue Wing Olive nymph. Adjust your indicator depth frequently to find where the fish are holding.
Streamer Fishing
Smaller streamers stripped slowly through pools can entice larger fish. Olive and black patterns are particularly effective.
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.
