Ashton-Flagg Ranch Road Bridge Accesson Warm River
Conditions right now
No USGS gauge is linked to this water yet, so we can't chart flows.
Blue-Winged Olive (BWO) hatches are consistent
- 01Blue-Winged Olive (BWO) hatches are consistent, especially on overcast afternoons, providing dry fly opportunities for selective fish.
- 02Midge emergences remain a reliable food source throughout the day, requiring keen observation for subtle takes.
- 03Trout, particularly larger browns and rainbows, are becoming more aggressive, making streamer and larger nymph presentations highly effective.
- 04Focus on deeper pools, slow bends, and current seams where fish conserve energy and ambush prey.
- 05Wading access around the campground areas offers excellent opportunities to cover productive water.
- 06Rainbow Trout, Brown Trout, Brook Trout, and Whitefish are the primary species to target.
What to tie on at Ashton-Flagg Ranch Road Bridge Access
Picked from recent reports for this stretch.
Blue-Winged Olive (BWO) Comparadun
BWOs are showing up early this year, and this low-profile dry fly is excellent for selective trout feeding on emergers in softer water.
Buy at AmazonMarch Brown
March Brown hatches are continuing through May, making this a primary dry fly for actively rising trout.
Buy at AmazonStonefly Nymph (Kaufmann's Stone)
Salmonfly hatches are just beginning around May 20th, and trout will be actively feeding on these large nymphs subsurface.
Mother's Day Caddis (Dry)
This prolific caddisfly hatch is expected late April through May, making it essential for matching the adult caddis.
Woolly Bugger (Olive)
A reliable year-round streamer, effective for imitating leeches and baitfish, especially for enticing aggressive strikes from active spring trout in varied conditions.
Micro Egg
With rainbow trout beginning their spawn, eggs are a crucial and consistent food source for opportunistic trout.
Buy at AmazonBlue-Winged Olive (BWO) Comparadun
Consistent fall BWO hatches provide reliable dry fly action, especially on overcast days.
Buy at AmazonParachute BWO
A staple fall dry fly, effective for imitating adult Blue-Winged Olives during intermittent hatches.
Travis Hi-Vis BWO Para Emerger
Crucial for targeting selective trout feeding on emerging Blue-Winged Olives in the film during fall hatches.
Idaho 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.