Spokane River

The Spokane is the rare wild trout fishery that runs straight through the middle of a city. From the Idaho state line down to Nine Mile Dam it holds a self-sustaining population of native Columbia River redband rainbows — the westslope subspecies — and you can genuinely hook an 18-inch fish within sight of downtown high-rises and the Monroe Street Dam. Average fish run 14 to 16 inches, with a scattering of browns, westslope cutthroat, and abundant mountain whitefish. The whole thing is catch-and-release under Selective Gear Rules — artificial flies and lures only, single barbless hooks, no bait — and that's not incidental: historic mining and industrial contamination is why everything gets released, and it's a big part of why a wild redband fishery survives in an urban corridor at all.

It fishes as a wade river almost everywhere, and a technical one. The bottom is basalt bedrock and algae-slicked cobble that earns its reputation as one of the slipperiest wades in the Northwest — felt soles and a wading staff aren't optional here. Flow is the whole game. Snowmelt keeps it blown out and dangerous above roughly 3,000 CFS into June, it settles into prime wadeable shape below about 1,800 CFS through mid-summer, and the downtown gorge sits in a sweet spot around 1,500 to 2,500 CFS. Caddis define the summer fishery — the evening hatches come off thick enough that locals describe clouds of bugs like smoke over the willows — and there are salmonflies and skwala stones early, PMDs in July, and a strong BWO push in the fall. A dry-dropper with a foam attractor over a Perdigon or Pheasant Tail covers most water; euro-nymphing works the pocket water down in the gorge.

The trade-offs are real. Mid-summer low water warms the upper reaches and the fishery there shifts toward smallmouth bass, so trout anglers chase the cooler, spring-influenced gorge below Spokane Falls, which holds mid-60s temperatures even in August. It's an urban river — you fish past joggers on the Centennial Trail, disc golfers, and paddleboarders, and the downtown reaches get crowded. But access is superb and free: Riverside State Park, Riverfront Park, and a string of city parks put you on the water the whole way down the corridor. The season runs from the Saturday before Memorial Day — which reopens the river right into peak caddis — through March 15, and few places anywhere let you catch a wild native trout on a lunch break.