Small Streams

Fly Fishing Report

SMALL STREAMS

Report
SEP 9 — 16, 2026
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Flow
CFS
🌡️
Water Temp
☀️
Weather
39–76°F
Sunny
🎣
Reported By
Bruce Staples
On the water
Teton basin small streams remain in excellent dry fly shape as cooler nights and shortening days signal the seasonal shift. Sunny skies and highs in the low-to-mid 70s keep terrestrial and hatch activity rolling through the week.
From the ShopBruce Staples · September 9, 2026

The Teton River in the basin remains a good choice for fly fishing even though daylight hours are diminishing and nights are getting cooler. Terrestrial insect patterns trailed with a small nymph remain very effective. PMDs, tricos, and yellow sally patterns work especially before bright sunshine arrives. Canyon waters have abundant bankside terrestrial insects (and rattlesnakes!). From Hog Hollow downstream, terrestrial insects are active during daytime hours with caddisflies active in the evening.

Palisades Creek remains a good choice to try, where trout respond to caddis life cycle, terrestrial insect, and traditional attractor patterns throughout the day. Big Elk Creek's afternoon western green drake hatch is beginning to wind down but still brings trout up during warm afternoons. Kokanee in the creek do not interfere with dry fly fishing — snagging them is illegal and IDF&G patrols the creek looking for violators.

Bitch, McCoy, and Bear Creeks are in good dry fly conditions with terrestrial insect and caddis activity resulting in feeding trout. Birch Creek remains good fly fishing because of numerous springs flowing into it. Tricos are beginning to show up there.

Hatch Chart
Insect Size Activity Prime Time
Terrestrials (Hoppers & Ants) #10–16 High Midday through afternoon
Caddisflies #18–20 Moderate–High Evening
PMDs #18–20 Moderate Early morning before bright sun
Tricos #20–22 Moderate (building at Birch Creek) Early morning
Yellow Sallies #14–16 Moderate Early morning before bright sun
Western Green Drake #12–14 Low–Moderate (winding down) Warm afternoons — Big Elk Creek
Best Time Window
  • EARLY MORNING (pre-sunrise to 9 AM): Fish PMD, trico, and yellow sally patterns before bright sunshine arrives — most effective on the Teton River and Birch Creek.
  • MIDDAY TO AFTERNOON (11 AM–4 PM): Prime terrestrial time across all streams; hopper-dropper rigs shine along canyon banks and on Palisades, Bitch, McCoy, and Bear Creeks. Hit Big Elk Creek for the western green drake.
  • EVENING (5 PM–dark): Switch to caddis patterns from Hog Hollow downstream and on Palisades Creek as caddisfly activity picks up.
Guide's Tip
From the benchRig a hopper or ant as your indicator fly and trail a small nymph 18–24 inches behind it — that combo is the most consistent producer across all the streams right now. Yellow sally and trico patterns (not currently in our catalog) are worth having in your box for the early-morning window before the sun hits the water. Head to Big Elk Creek in the afternoon if you want a shot at the western green drake hatch while it lasts, but be aware IDF&G is actively patrolling for kokanee snaggers — keep it clean.
Main Species
Brook Trout
Yellowstone Cutthroat Trout
Rainbow Trout
Report generated September 9, 2026 — Next update: September 16, 2026