Crooked River

The Crooked River originates in the Ochoco Mountains east of Prineville and flows 125 miles westward through the high desert of Central Oregon before joining the Deschutes River at Lake Billy Chinook. While the river system is extensive, the fly fishing fame of the Crooked River centers on one remarkable stretch: the 8 miles of cold, clear tailwater immediately below Bowman Dam, which impounds Prineville Reservoir.

This section of river flows through a stunning basalt-walled canyon along the Crooked River Back Country Byway (Highway 27), providing easy road access to virtually every pool, riffle, and run. The canyon walls rise 300-500 feet above the river, creating a dramatic backdrop of columnar basalt, rimrock, and juniper-studded hillsides. The road parallels the river closely, with numerous pullouts and nine developed BLM campgrounds providing walk-in access to the water.

The fishery is built on a population of native redband rainbow trout, a hardy, colorful subspecies adapted to the high-desert environment. During optimal flow periods, fish densities in the best reaches have been documented at over 8,000 trout per mile, making this one of the most densely populated trout streams in the Pacific Northwest. The average fish runs 8-12 inches, with plenty of 14-16 inch fish and occasional trophy redband exceeding 18 inches.

What makes the Crooked River special is its accessibility and year-round fishing. While other Central Oregon waters are locked in ice or blown out by snowmelt, the Crooked River's tailwater flows remain fishable throughout the winter. January and February midge hatches can produce outstanding sight-nymphing to rising fish on mild days. The river's intimate size, typically 30-50 feet wide, makes it approachable for beginning fly anglers while still offering enough technical challenge to engage experts.

The Crooked River's health is directly tied to flow releases from Bowman Dam. In drought years, irrigation demands can reduce flows to critically low levels, stressing the fishery and reducing trout densities. Conservation groups, ODFW, and the Bureau of Reclamation have worked to establish minimum flow agreements that protect the fishery, but flows remain a year-to-year concern that anglers should monitor.

The Crooked River below Bowman Dam is a classic tailwater, with cold, clear releases from the bottom of Prineville Reservoir providing stable water temperatures and consistent clarity year-round. Water temperatures in the prime fishing section typically range from 40-48 degrees F in winter to 52-60 degrees F in summer, though low-flow years can push summer temperatures uncomfortably high. Clarity is generally excellent (4-8 feet of visibility is standard), allowing for sight-fishing to individual trout in many pools and runs.

The substrate is a mix of gravel, small cobble, and silt, with larger basalt boulders providing structure and cover. The gravel beds are critical spawning habitat for the resident redband population and should not be waded through during spring spawning season (typically March-May). The relatively fine substrate supports prolific midge and mayfly populations, while caddis larvae thrive on the cleaner cobble sections. Scuds (freshwater shrimp) are also present and are an important food source.

The insect life, while not as diverse as the Deschutes, is remarkably abundant for a river of this size. Midges are the dominant food source year-round, with Blue-winged Olives and Pale Morning Duns providing the primary mayfly hatches. Caddis are present but less significant than on larger rivers. Scuds and aquatic worms round out the subsurface menu. On the Crooked River, the mantra is "small and precise beats big and flashy."