The Blue River, originating from the Continental Divide near Breckenridge, Colorado, flows through Summit County and joins the Colorado River near Kremmling. Renowned for its clear waters and abundant trout populations, the river offers diverse fly fishing opportunities across its freestone and tailwater sections. Anglers can enjoy year-round fishing, with each season presenting unique challenges and rewards.
The Blue River can be divided into three main sections:
1. **Upper Blue River**: From its headwaters near Breckenridge to Dillon Reservoir, this freestone section features classic mountain stream characteristics with riffles, runs, and pools.
2. **Middle Blue River**: Flowing from Dillon Reservoir through Silverthorne to Green Mountain Reservoir, this tailwater section is known for its consistent flows and large trout, particularly below the Dillon Dam.
3. **Lower Blue River**: Extending from Green Mountain Reservoir to the confluence with the Colorado River, this stretch offers a mix of public and private access, with opportunities for both wade and float fishing.
Each section provides distinct fishing experiences, catering to various angler preferences.
The Blue River supports a diverse range of fish species, including:
- **Rainbow Trout**: Abundant throughout the river, especially in tailwater sections below dams.
- **Brown Trout**: Common in all sections, with larger specimens often found in the lower river.
- **Brook Trout**: Present in the upper reaches and smaller tributaries.
- **Cutthroat Trout**: Native species found in certain stretches.
- **Kokanee Salmon**: Migrate upstream from Green Mountain Reservoir during the fall spawning season.
This variety offers anglers the chance to target multiple species using different techniques.
Understanding the behavior and diet of Blue River fish enhances angling success:
- **Rainbow and Brown Trout**: Feed on a diet of aquatic insects, including midges, mayflies, caddisflies, and stoneflies. In tailwater sections, Mysis shrimp are a significant food source.
- **Brook and Cutthroat Trout**: Prefer smaller streams and feed on insects and small crustaceans.
- **Kokanee Salmon**: During their fall migration, they become aggressive, making them susceptible to brightly colored streamers and egg patterns.
Seasonal hatches influence feeding patterns, with midges prevalent in winter and early spring, and mayflies, caddisflies, and stoneflies emerging in warmer months.
Effective fishing methods on the Blue River include:
- **Nymphing**: Utilizing weighted nymphs to target trout feeding near the riverbed.
- **Dry Fly Fishing**: Matching the hatch during insect emergences, particularly in summer and fall.
- **Streamer Fishing**: Imitating baitfish to entice aggressive strikes, especially effective for larger trout and during low-light conditions.
Adjusting techniques based on water conditions, time of year, and observed fish behavior is crucial for success.
Notable fishing locations along the Blue River include:
- **Silverthorne Tailwater**: Below Dillon Dam, known for large trout feeding on Mysis shrimp.
- **Blue River Campground**: Provides access to productive waters with diverse fishing opportunities.
- **Green Mountain Tailwater**: Below Green Mountain Reservoir, offering year-round fishing with regulated flows.
Each spot offers unique experiences, from urban settings to remote wilderness.
Key access points along the Blue River include:
- **Silverthorne**: Public access near the outlet stores, with parking and amenities.
- **Blue River State Wildlife Area**: Multiple access points between Silverthorne and Green Mountain Reservoir.
- **Green Mountain Reservoir**: Access below the dam; note that some areas require a hike to reach the river.
Be mindful of private property boundaries and always use designated public access points.
For the Blue River, a 9-foot, 5-weight fly rod with a matching reel and floating line is versatile for most conditions. Use a 9-foot leader tapered to 4X or 5X tippet. Essential flies include Mysis shrimp patterns, midges, Blue Wing Olive (BWO) imitations, caddisflies, and stoneflies. Waders and boots with good traction are recommended, especially in colder months.
Anglers are encouraged to practice catch-and-release to maintain healthy fish populations. Be aware of invasive species and follow guidelines to prevent their spread. Respect wildlife habitats and adhere to Leave No Trace principles to preserve the river's natural beauty.
Always check current weather and water conditions before heading out. Be cautious of changing flows, especially below dams, as water levels can rise rapidly. Wear appropriate clothing for the season, and inform someone of your fishing plans and expected return time.
Local fly shops provide valuable resources, including current fishing reports, gear, and guided trips. Notable shops in the area include:
- **Cutthroat Anglers**: Located in Silverthorne, offering a wide range of services and products.
- **Mountain Angler**: Based in Breckenridge, providing guided trips and a comprehensive selection of gear.
These shops are excellent starting points for planning your Blue River fishing adventure.
Several organizations work to protect and enhance the Blue River ecosystem:
- **Colorado Parks and Wildlife**: Manages fish populations and habitats.
- **Trout Unlimited**: Engages in conservation projects and advocacy.
Supporting these organizations helps ensure the Blue River remains a thriving fishery for future generations.