Fly Fishing Bear River

Fly fishing Bear River – North of Evanston puts you on a comeback story in the far southwest corner of Wyoming. The Bear River is the longest river in North America that never reaches the sea, looping down out of the Uinta high country and swinging back north toward the Great Salt Lake, and this reach threads open meadow and ranch pasture at roughly 6,745 feet just upstream of town. For more than a century the old Evanston Dam sat in the middle of it. A 2022 project realigned the channel and buried the dam, reconnecting miles of habitat that had been cut off from the rest of the drainage, and the water you fish here now is a young, restored river running through an old valley.

The character is pure freestone with a high-desert meadow accent: cold, clear snowmelt water sliding through willows and grass banks in a steady rhythm of riffles, runs, and glides, with undercut banks doing most of the holding work. At about 22 feet of drop per mile it has enough tilt to keep the riffles honest without turning into pocket water, and the whole reach reads at a glance. This is not big water. It rewards a fisher who works seams, foam lines, and the heads and tailouts of meadow pools rather than one who waits on a perfect hatch match — the trout here are wild and generally willing rather than pressured and picky.

The native fish is the Bonneville cutthroat trout, known locally in this drainage as the Bear River cutthroat, and its recovery is the entire reason the dam came out. Bonneville cutthroat share the reach with brown trout and rainbow trout. Most fish run twelve to sixteen inches, with the better browns tucked deeper in the undercut meadow pools and the cutthroat favoring cleaner, cooler, faster runs. For anyone chasing Wyoming's Cutt-Slam, this is the drainage that supplies the Bonneville leg.

Hatches follow the wider Bear River Basin freestone rhythm. Midges are the cold-season backbone, working through the months when nothing else moves. Blue-winged Olives bracket the year, coming off on cool overcast afternoons before runoff and again once fall settles in. Through the warm stretch, golden stones and caddis open things up, pale morning duns fill the midday water, and little yellow stones work the faster riffles. Terrestrials are the real story from high summer until the first hard freeze — hoppers, ants, and beetles blown off those grass banks bring fish up all day. Buoyant attractor dries move trout even between hatches.

Flows run on snowmelt, which means high, off-color water through the melt-out and a long, stable window afterward in the fifty-to-two-hundred cfs range that fishes and wades well. The USGS gage at Evanston sits inside this reach, so the number on the screen is a true read on the water in front of you rather than a distant proxy. Wading is moderate: firm meadow gravel and forgiving depths at seasonal flows, with slick spots and soft banks where the willows crowd in. This is a wading and walking river, not a float.

Access comes through Wyoming Game and Fish access areas and walk-in easements strung along the corridor off US 89 near Evanston. Some easement roads want high clearance or four-wheel drive, travel past the parking areas is on foot only, and camping is limited to posted spots. The reconnected water around the former dam site is the headline, but the walk-in stretches above and below it hold fish too. Evanston itself is a small railroad and ranching town right on I-80 with full services, and Salt Lake City is the nearest commercial airport, about an hour and fifteen minutes south — close enough to make this an easy addition to a northern Utah or southwest Wyoming trip.