Crooked River Fly Fishing Report — August 20, 2026: PMD & Caddis Action, Ideal 56°F Water
Parachute Adams, Pheasant Tail Nymph, Elk Hair Caddis, Chubby Chernobyl, Zebra Midge, Copper John, Woolly Bugger, Stimulator
Crooked River Fly Fishing Report
Current Conditions Overview
The Crooked River tailwater is delivering some of the best fishing in Central Oregon right now. USGS gauge 14087400 (below Opal Springs, near Culver) is reading 1,240 CFS — note this gauge captures flows downstream of Opal Springs; the prime tailwater fly fishing section above the springs is running lower. Water temperatures are a near-perfect 56°F this morning, a significant advantage over the Deschutes and other high-desert streams running warmer this time of year. Clarity is excellent — the Crooked’s tailwater character keeps it gin-clear even during the summer months.
This is a fly-fishing-only, catch-and-release river in this section. The unique combination of cool regulated flows from Bowman Dam, abundant aquatic insects, and an estimated 4,000+ trout per mile makes the Crooked one of the Pacific Northwest’s truly special fisheries. Flows are elevated compared to low-water summer norms, so exercise caution while wading and stick to shallower inside bends and softer edges.
🐛 What’s Hatching
PMDs (Pale Morning Duns) are now showing up in meaningful numbers during the early afternoon window, with activity carrying into the early evening. The PMD hatch on the Crooked has been one of the highlights of late summer, and fish are looking up for well-presented imitations during the emergence window. The past week has also seen a notable uptick in caddis — both small black caddis (#18) and slightly larger tan caddis (#16) are active through the afternoon and into evening. Midges and scuds are the reliable year-round backup when surface action is slow.
- PMD (Pale Morning Dun) — #16–18 | Moderate–Good | 12:00 PM – 5:00 PM
- Caddis (Black & Tan) — #16–18 | Moderate | 2:00 PM – Dusk
- Midge — #20–24 | Moderate | All day (especially morning)
- Scud — #16–18 | Consistent | All day subsurface
If you arrive in the morning before the PMD hatch kicks in, start with nymphs — PMD nymph and caddis pupa patterns drifted through seams and soft edges will keep you busy until the afternoon dry-fly action develops. Leeches swung or dead-drifted are also a consistent producer any time of day.
🩷 Top Fly Recommendations
For the PMD hatch (midday–afternoon), a Parachute Adams (#16–18) is the go-to all-purpose mayfly dry that will fool fish during mixed-hatch conditions and is a must-have when trout are sipping in the flats. Match it with a Pheasant Tail Nymph (#16–18) dropped below as an emerger imitation before fish fully commit to the surface.
For caddis, the Elk Hair Caddis (#16–18, tan or black) is a proven Crooked River producer through the afternoon hatch window. A Chubby Chernobyl (#14) works beautifully as a high-floating indicator dry with a PMD or midge nymph dropper — a deadly morning rig on this river. In the morning midge window, the Zebra Midge (#20–22, red or black) is essential and arguably the single most reliable fly in your box for the Crooked year-round. For deeper nymphing in the bigger runs, a Copper John (#16) with a Pheasant Tail dropper covers multiple food sources in one drift. Round out your box with a Woolly Bugger (#6–8, olive) for swinging through the deeper pools — leeches are a consistent producer on the Crooked and can pull out some of the biggest fish in the river.
Don’t overlook a Stimulator (#14–16) as a caddis or attractor dry in riffled water where fish are willing to move for a bigger meal.
🗺️ Best Access Points
- Crooked River Ranch (Lone Pine Road): Multiple BLM pullouts along the canyon rim with trail access to the river — best walk-in wade fishing in the system; bring sturdy footwear for the canyon trail
- Lower River Road (north of Terrebonne): Easiest vehicle access to the river edge; several informal pullouts near good riffles and runs
- Smith Rock State Park (Chute & Misery Ridge area): River access at the park boundary — heavy hiker traffic on weekends but river corridor can be peaceful; day-use fee required
- Ogden Wayside State Park: Easy roadside access off Hwy 97, good starting point for beginners or those unfamiliar with the canyon
⚠️ Hazards & Notes
- Elevated flows: 1,240 CFS at the downstream gauge indicates higher-than-typical flows in the system — wade cautiously, use a wading staff, and stay off exposed mid-river bars in faster sections
- Fly fishing only: The Crooked River below Bowman Dam is restricted to fly fishing with artificial flies only — barbless hooks strongly encouraged
- Rattlesnakes: High August temperatures mean active snakes on canyon trails and rocky ledges — watch your step at all times
- Canyon heat: While water temps are ideal, canyon air temps will exceed 90°F by afternoon — bring plenty of water, sun protection, and a hat
- Catch & release: All trout in this section must be released immediately with care; use wet hands and minimize air exposure