RIVER REPORT
Cache La Poudre | Canyon Mouth near Fort Collins
The Cache La Poudre River, Colorado’s only designated Wild and Scenic River, flows through the rugged landscapes of the northern Front Range. Originating in the Rocky Mountains, the river offers a mix of pocket water, riffles, and deeper pools, making it a diverse fishery that supports wild populations of rainbow, brown, and brook trout. Fly fishing is productive year-round, with excellent insect hatches including caddisflies, mayflies, and stoneflies, particularly in the spring and summer months. The river’s varying flow conditions cater to different fishing techniques, from nymphing and dry fly fishing to streamers. Accessible from several points along Highway 14, the Cache La Poudre provides both challenging and rewarding fishing experiences in a stunning, scenic setting.
CONDITIONS
Weather & Flow Data Reported From OpenWeather and USGS
Recent Reports
Cache la Poudre River at Canyon Mouth – April Fly Fishing Report: As of early April, the Cache la Poudre River near the canyon mouth is exhibiting favorable spring fishing conditions. Recent reports indicate that the lower sections of the canyon up to the Mishawaka are completely open, with ice receding substantially in higher elevations. Anglers are observing increased fish activity, particularly during warmer midday periods. Effective nymph patterns include Two-Bit Hookers, Poison Tungs, UV Midges, and Juju Baetis. As temperatures rise, smaller Baetis hatches are becoming more prevalent, with fish responding to emergers and dry flies. Carrying a variety of nymphs and dries, such as small CDC BWOs and Extended Body BWOs, is advisable to adapt to changing conditions. While the lower canyon is largely ice-free, some lingering ice and snow may be present in higher elevations, so caution is recommended. Overall, the Cache la Poudre River near the canyon mouth offers promising opportunities for anglers this April.
Water Flow Data
5 Day Outlook
BUGS
Cache La Poudre’s insect life provides a smorgasbord for hungry trout. AvidMax recommends these key fly patterns:
THE FISHERY
The Cache La Poudre River, nestled in the rugged beauty of northern Colorado, offers anglers a diverse fishing experience with its clear waters, abundant trout, and stunning canyon scenery.
Fish Species
The Cache La Poudre River is home to healthy populations of wild brown and rainbow trout, with some cutthroat trout found in higher elevations. Trout sizes typically range from 10-16 inches, but the river’s rugged terrain and diverse ecosystem allow for opportunities to catch larger fish, especially in deeper pools and remote sections.
Unique Fishing Conditions
The Cache La Poudre offers a variety of fishing conditions, from narrow, fast-moving sections with pocket water in the upper reaches to wider, slower-flowing sections downstream. Spring runoff can create high flows, but summer and fall offer ideal conditions for dry fly fishing. Popular fly patterns include caddis, blue-winged olives, and terrestrial patterns like hoppers and ants during the warmer months. Nymphing with small stonefly and midge patterns (sizes 16-20) is effective year-round, especially in deeper runs and riffles.
Access and Regulations
The Poudre River Canyon, accessible via Highway 14, offers ample public access, with numerous pull-offs and campgrounds. Much of the river runs through National Forest land, making it easy to find places to fish. The lower section of the river, below the canyon, has more regulations, including catch-and-release areas and specific gear restrictions. Anglers should check local regulations and consider practicing catch-and-release to help preserve the fishery, especially in the more pressured lower sections.
TACTICS
AvidMax encourages anglers to explore their full repertoire at Cache La Poudre:
Nymphing
Nymphing allows anglers to target trout feeding below the surface, with or without an indicator, making it an effective technique for covering deep runs and slow pools where fish are actively feeding on subsurface insects.
Dry Fly Fishing
Fishing with dry flies provides the ultimate surface experience, imitating adult insects and offering exciting visual strikes, particularly during hatches when trout are feeding on the water’s surface.
Streamer Fishing
Using streamers mimics baitfish and other larger prey, offering an aggressive approach that can entice bigger, predatory trout, especially when fishing deeper water or fast-moving currents.
SEASONS
Each season on the Cache La Poudre brings unique joys and challenges for AvidMax anglers:
Spring
Spring runoff can raise water levels and create faster flows, making nymphing with stoneflies and baetis patterns in slower pools and along the edges effective. Focus on deep runs and pockets where trout take refuge from strong currents.
Summer
Summer brings excellent dry fly fishing with hatches of caddis, PMDs, and terrestrials like ants and hoppers. Early mornings and late evenings offer the best opportunities for surface action, especially in riffles and along undercut banks.
Fall
Fall is ideal for targeting brown trout as they prepare to spawn, with streamers and egg patterns being especially effective. Focus on deeper pools and near structure where larger trout hold during cooler weather.
Winter
Winter fishing is slower, but trout can still be caught using small midge and baetis nymphs in deep, slow-moving pools. Fish during the warmest part of the day when trout are more likely to be active.
REMEMBER
The Cache La Poudre River, Colorado’s first designated Wild & Scenic River, offers anglers a diverse fishing experience with its rugged beauty and healthy trout populations. As a popular destination, it’s essential to fish responsibly and be mindful of the river’s natural environment to help protect this cherished fishery.
Water Conditions
Spring runoff can make the river high and fast, while late summer and fall provide more manageable flows. Always check water levels before heading out, especially during peak runoff periods in spring.
Regulations
Certain sections of the Cache La Poudre may have special regulations, such as catch-and-release or artificial flies and lures only. Be sure to familiarize yourself with these rules to ensure compliance and protect the fishery.
Safety
The Poudre flows through steep canyons with slick, rocky riverbeds, making wading challenging in certain areas. Always wear appropriate wading gear, and be cautious of fast-moving currents, especially after storms or during runoff.
COMMENTS
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