Blue River Fly Fishing Report Near Green Mountain Reservoir 10.28.2024

Current River Conditions

The Blue River below Green Mountain Reservoir is offering up fall fishing at its best, with flows around 250-300 CFS, crystal-clear water, and cool temperatures between 45-50°F. The scene is pure Colorado beauty, with vibrant fall colors framing the riverbanks and eager trout feeding up for winter. Anglers can expect a mix of browns and rainbows hiding in deeper runs and along banks, where nymphs and streamers are catching their attention. Best fishing hours are late morning to mid-afternoon, when the sun warms the water just enough to kickstart the trout's feeding.

• Flow Rate: 250-300 CFS
• Water Temperature: 45-50°F
• Clarity: Clear
• Best Times: Late morning to mid-afternoon

River Flow Chart

For real-time data on river conditions, visit the Colorado Division of Water Resources.

Top 3 Flies for the Week

• Dry Fly: Blue Wing Olive (#18-22) – Best during overcast afternoons; target rising trout in seams and slower pools.
• Nymph: RS2 (#20-22) – A go-to during BWO hatches; drift it through riffles and deeper runs.
• Streamer: Pat’s Rubber Legs (#8-10) – Fish along undercut banks and deep pools to provoke strikes from big browns.

Tips for Fly Fishing Near Green Mountain

Seasonal Tip
This tailwater stretch behaves like a freestone in fall, with aggressive feeding as the trout prepare for winter. Keep presentations subtle and use longer leaders and light tippets in clear water.

Dry Fly
Blue Wing Olive hatches are common in October, especially on cloudy days. Cast a BWO in the late morning or afternoon to rising trout along slower runs and seams.

Nymphing
Pair an RS2 with a Zebra Midge for a two-fly rig that covers both midges and Baetis nymphs. This combo works well in deeper pools and riffles where trout are feeding below the surface.

Streamer Fishing
Pat’s Rubber Legs or small sculpin patterns can draw aggressive takes, especially from brown trout along undercut banks. Swing or strip streamers near structure in the early morning or late afternoon.

Access Points

Green Mountain Tailwater

• Description: A prime tailwater section just below the dam, accessible by a short hike.
• Why Fish Here: Known for stable flows and a healthy population of brown and rainbow trout.
• Location: [Google Maps link here]
• Locals’ Rating: ⭐⭐⭐⭐⭐

Tumble Creek Confluence

• Description: A scenic access spot where Tumble Creek joins the Blue River.
• Why Fish Here: Excellent for wading, with plenty of trout holding in deeper waters.
• Location: [Google Maps link here]
• Locals’ Rating: ⭐⭐⭐

Blue River Campground

• Description: Offers easy access to the river along with camping facilities.
• Why Fish Here: Ideal for a full-day fishing adventure with ample trout in riffles and pools.
• Location: [Google Maps link here]
• Locals’ Rating: ⭐⭐⭐