Big Piney Accesson Upper Green River
River flow last 30 days
Significantly low flows at 47
- 01Significantly low flows at 47.0 cfs, much lower than typical for mid-October.
- 02Late-season Tiny BWO hatch winding down, Mahogany Duns and October Caddis beginning to emerge.
- 03Fish are concentrated in deeper runs, pools, and undercut banks due to low water.
- 04Nymphing is performing well, especially in upper sections.
- 05Stealth, longer leaders, and proper fly weighting/retrieve are crucial in clear, low water.
What to tie on at Big Piney Access
Picked from recent reports for this stretch.
Perdigon
An effective and versatile nymph for getting down quickly in fast water and targeting subsurface feeders in low flows.
Buy at AmazonRS2
The RS2 serves as an excellent midge pupa or Baetis emerger imitation. In February, it is highly effective as a trailer nymph in a multi-fly rig.
Stimulator (Yellow)
A versatile attractor that can imitate larger terrestrials like golden stoneflies or grasshoppers, drawing aggressive strikes from opportunistic trout during summer.
Bank Beetle
Beetles are a common terrestrial food source along the riverbanks in summer; this pattern is effective for trout looking for surface offerings near vegetation.
Flashback Hare's Ear Nymph
A reliable general searching nymph, mimicking various aquatic insects, effective year-round, especially when fish aren't actively rising.
Zebra Midge
Midges are the most consistent food source in the Upper Green during winter. Black or red patterns in small sizes are essential for subsurface success.
Buy at AmazonBlue-Winged Olive Comparadun
Blue-Winged Olives are actively hatching in early spring, especially on overcast days, and this low-profile dry fly is excellent for selective trout feeding on emergers and adults on the Upper Green River.
Flashback Baetis Nymph
Aligns with active early spring mayfly nymph activity on the Upper Green River, effective for subsurface feeding Cuttbows and other trout.
Woolly Bugger (Olive)
A reliable year-round streamer, the olive Woolly Bugger is effective for imitating leeches and baitfish, especially in the colder spring flows of the Upper Green River.
Wyoming 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.