Butte Sinks Areaon Island Park Reservoir
River flow last 30 days
What's working on Island Park Reservoir
- 01Trout are actively feeding on Mysis shrimp and leeches in deeper water.
- 02Chironomid pupa patterns are a consistent producer when fished under an indicator.
- 03Streamer patterns, like Woolly Buggers and Muddler Minnows, are effective for enticing larger, predatory trout.
- 04Keep an eye out for intermittent fall BWO and PMD hatches for dry fly opportunities, especially on cloudy afternoons.
- 05Egg patterns can be highly effective near any areas with spawning trout.
What to tie on at Butte Sinks Area
Picked from recent reports for this stretch.
Callibaetis Nymph
Callibaetis nymphs become active in lakes during spring, making this an essential subsurface pattern.
Buy at AmazonChironomid Pupa
Chironomids are a primary food source in stillwaters during spring, and trout will be actively feeding on the abundant pupae.
Buy at AmazonWoolly Bugger (Olive)
A reliable year-round streamer, effective for imitating leeches and baitfish, especially as trout become more active in warming spring waters.
Balanced Leech (Black)
Leeches are a staple forage for predatory trout in stillwaters year-round, and this pattern is highly effective for enticing active fish in spring.
Blue-Winged Olive (BWO) Comparadun
Blue-Winged Olives are actively hatching in early spring, especially on overcast days, providing opportunities for selective trout feeding on emergers and adults.
Buy at AmazonScud (Pink/Orange)
Freshwater shrimp are a consistent food source in lakes with aquatic vegetation, and pink or orange scuds are effective in early spring.
Buy at AmazonZebra Midge (Black)
Midges are a primary food source in stillwaters year-round, and this small nymph is effective for enticing finicky trout.
Glo Bug (Orange)
With the upcoming spring rainbow spawn, trout will key into egg patterns.
Scud (Pink/Orange)
Freshwater shrimp (scuds) are abundant in areas with aquatic vegetation in reservoirs, providing a consistent food source for trout.
Buy at AmazonIdaho season by season
What changes on the water through the year, with the flies for each season.
Fly shops nearby
Local flies, current advice and guided trips.