Bow River Fishing Report – April 16, 2025 (Calgary to Carseland)

Current River Conditions

The Bow River is currently flowing at approximately 60 m³/s (2100 cfs), offering ideal low-flow, clear-water conditions. Anglers can expect visibility up to 6 feet, making it excellent for sight fishing opportunities.

Weather and Water Temperatures

Recent weather patterns have fluctuated between cooler temperatures and brief snow flurries. Water temperatures currently range from 4°C to 7°C, warming slightly during afternoons. Expect improving conditions as temperatures rise to around 15°C later in the week.

Hatch Activity & Insect Trends

Spring insect activity has picked up significantly. Key hatches to watch include:

Midges & Blue-Winged Olives (BWOs): Best action midday through late afternoon in slow-moving pools.
Skwala Stoneflies: Recently emerging, especially downstream near McKinnon Flats.
Water Boatmen: Active in calmer backwaters and shallow sections.

Recommended Fly Patterns & Techniques

Nymphs

Pat’s Rubber Legs (sizes 6–10, brown/black)
San Juan Worms (pink, red, brown)
Prince Nymph, Copper John, Pheasant Tail (sizes 12–16)
Zebra Midges and BWO Nymphs (sizes 18–20)
Water Boatman patterns (sizes 12–14)

Streamers

Black and Olive Marabou Leeches (sizes 4–8)
Sparkle Minnow, Zoo Cougar, Mini Dungeon

Dry Flies

Parachute Adams, Griffith’s Gnat (sizes 18–20)
Dornan’s Water Walker, Rogue Skwala (sizes 10–12)

Trout Behavior and Fishing Tips

Trout are transitioning from winter holding patterns into active feeding. They remain concentrated in deeper runs but are becoming increasingly mobile throughout the day. Focus on seams, pool tailouts, and slow-moving runs. Rainbow trout spawning activity is underway, so practice careful wading and ethical fish handling. Brown trout are actively feeding, offering excellent trophy opportunities with streamers.

Access Points & Conditions

Location	Conditions	Accessibility
Glenmore (Graves Bridge)	Clear, low flows	Boat launch open; bank fishing excellent
Policeman’s Flats	Clear water, stable flows	Road and launch open, good wade access
McKinnon Flats	Clear, slightly tea-stained	Access road recently opened; excellent wading opportunities
Carseland (Johnson’s Island)	Clear to lightly stained	Launch and day-use fully accessible; minimal Highwood influence

Angler Recommendations

Fish the Afternoon: Best activity is late morning through mid-afternoon.
Stealth is Key: Clear conditions demand cautious wading and precise presentations.
Depth Matters: Fish nymph rigs deep; adjust weight for consistent bottom contact.
Vary Your Techniques: Be prepared to switch between dries, nymphs, and streamers quickly as conditions change.
Streamer Fishing: Excellent opportunity for larger browns; experiment with retrieval speed.

Summary and Outlook

The Bow River between Calgary and Carseland currently offers prime spring conditions. With clear water, steady flows, and increasingly active trout, anglers can expect productive fishing, particularly when employing versatile tactics. This window before runoff provides an ideal chance for both quantity and quality catches.

Tight lines!