Thousands of fly fishers will travel to Idaho every year to fish the fabled waters of the Henry’s Fork, Silver Creek, and the Middle Fork of the Salmon River. While these waters are some of the best and most popular fly-fishing destinations in the U.S., other Idaho waters remain virtually unknown despite their wonderful fishing opportunities.
Far to the north of the Henry’s Fork, Kelly Creek, one of Idaho’s best-kept angling secrets, flows into the North Fork of the Clearwater. This little gem offers anglers gin-clear water and native cutthroat trout in the quiet solitude of a mountain stream. It’s a place where you feel like you have the river and its superb fly fishing all to yourself. Other great streams in the area include Cayuse Creek, a tributary to Kelly Creek, and Weitas Creek, another tributary to the North Fork.
Kelly Creek begins high in the mountains of the Idaho panhandle, far from civilization, and runs as clean and clear today as it did 100 years ago. In this unspoiled high-mountain freestoner, native West Slope cutthroats up to 20 inches leap to take a fly and then dive for the bottom. It’s a special place and an exceptional river.
August on the River
When Deschutes River guide Greg Larsen suggested a trip to Kelly Creek for early August 1996, I quickly agreed to accompany him. I grew up near the confluence of the Snake and Clearwater rivers and had fished Kelly Creek as a child in the 1950s. I was anxious to revisit the area with a fly rod to unlock its fishing secrets.
Greg’s parents, now retired, were camp hosts at the Washington Creek Campground, a U.S. Forest Service facility on the North Fork of the Clearwater, 17 miles downriver from Kelly Creek. So we stayed there and planned on a daily fishing commute up along the North Fork to Kelly Creek.
We thought we would find the best fly fishing in Kelly Creek, because it has had catch-and-release regulations since 1970. But each morning as we drove along the North Fork river road on our way to Kelly Creek, we discovered promising water; we had to stop to fish. We enjoyed excellent fishing in riffles, corners, and boulder-lined runs along the North Fork, catching and releasing from 10 to 15 nice cutts in two days of nonstop fishing, finally reaching Kelly Creek on our third day. But when we did, we found the fishing there to besuperb.
We fished mostly drys but also had success with nymphs and emergers. The largest fish were taken on an October caddis pupa, which the fish mistook for the large cased caddis that cover the river’s rocks. These caddis fashion their cases from the streambed’s pinkish-brown gravel, which gives them a light-brown case with a black head and black legs visible at the tip. Trout pluck the naturals from the rocks or devour them as they wash downstream. Although we fished nymphs successfully throughout the day, we caught most of the trout on drys. In the evenings by our campfire, we planned a return to Kelly Creek in the fall to meet the October caddis hatch.
Meeting the October Caddis
Greg Larsen was busy guiding steelheaders on the Deschutes in the fall, so Tom Herrera and I returned for the caddis hatch in the first week of October 1996. The morning temperatures were cool, but once the sun warmed the air, the cutts responded to drys. The fishing was relaxed and comfortable, with the mountains garbed in golden aspen. October caddis adults rested on the streamside trees and bushes, and trout responded eagerly to #8 to #14 Elk-hair Caddis and Stimulators.
We fished mayfly, small caddis, and attractor imitations successfully throughout the day. Then in early afternoon, large, clumsy caddis appeared over the stream and skippedand bounced across the surface, and the trout began to slash in earnest. We cast our large imitations into the fast water, short-lined them into turbulent pocketwater, and floated them drag-free in the quiet water beside the current seams. The cutts took our Elk-hairs greedily.
Kelly Creek is not a large stream, but it is fast-flowing and turbulent, with a steep gradient and a bouldered freestone streambed. The swift, boulder-filled runs and pocketwaters can produce 30-fish days when you fish drys upstream on short casts or high-stick heavily weighted nymphs upstream through the pockets and runs. When using these techniques, you must strip fast to control your line and wade aggressively (using a wading staff and boots with good ankle support).
This is classic pocketwater fishing. When you fish a dry in the fast, broken water, your success depends more on a drag-free presentation than on your ability to match the hatch. Your casts are often short, but your fly falls into strong currents and cross-currents that instantly create drag. A 9-foot or longer rod and an 8-foot, 4X or 5X leader allow you to keep your floating line and most of your leader off the water so you control drag. And it often takes more than one cast to produce a drift that floats drag-free and fools the trout. Your first cast is experimental; then you refine your drifts with better fly placement and rapid line mending to counteract drag.
The rough-surfaced fast water helps conceal your presence from the trout. You make multiple casts to each pocket without spooking the fish, which must make eat-or-don’t-eat decisions quickly. The pocketwater holds many trout per mile, but most of the fish are in the 10- to 14-inch range, with the larger trout holding in the slower water adjacent to the fastwater feeding lanes. To catch these trout, you must work the seams, the deeper pockets, and the cushion water in front of boulders.
During hatchless hours, cutts jump and somersault to take heavily-hackled Western attractor drys (#16-#18 Elk-hair Caddis, Parachute Adams, Royal Wulff, and Humpy) cast to holding lies—behind rocks, beside logs, and in the seams.
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