Small Streams
The Teton River is approaching its run-off peak, expected in early June. Anglers should anticipate challenging conditions in the canyon and lower reaches until flows begin to stabilize.
The Blackfoot River below the dam remains high and off-color due to ongoing run-off, making fishing tough for now. Conditions should begin improving mid to late June depending on weather and snowpack.
For those looking to fish smaller water, Warm River near the campground continues to offer some of the best action in the region. Caddis hatches are strong, and Blue-Winged Olives (BWOs) are still present on cooler, overcast days. March browns are tapering off, but a few golden stoneflies are beginning to show, providing some exciting topwater opportunities—especially during the warmer afternoons. Dry-dropper setups with a stonefly or attractor dry paired with a small mayfly nymph have been productive.
In addition to Warm River, other small streams across Southeastern Idaho are starting to wake up. The Little Wood River near Carey has been a sleeper hit lately, with clear flows and responsive trout hitting both dry flies and nymphs. Look for caddis activity in the afternoons, and try small beadhead nymphs or soft hackles beneath a bushy dry.
Streams in the Upper Snake and Portneuf drainages are still running a bit high, but smaller tributaries with spring influence or low elevation snowpack are becoming more fishable by the day. As runoff recedes, expect improving clarity and a surge in insect activity.
As always, keep an eye on streamflow data and watch for sudden increases from afternoon thundershowers or snowmelt. Conditions are dynamic this time of year, but the rewards for small stream exploration are high.
Flies to fish:
