Alaska · Lake and Peninsula Borough

Naknek River

🏞 National Park
Lake and Peninsula Borough · 35 mi · Class I–II
Optimal: 1000–6000 CFS · USGS #15297890
CFS
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Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 3,500 cfsHist. median: 3,150 cfsUSGS #15297890
Katmai National Park and Preserve · Bristol Bay Watershed · ADF&G Trophy Rainbow Trout

The most famous trophy rainbow trout river on earth. The Naknek drains Naknek Lake in Katmai National Park and Preserve, supporting wild rainbows that routinely exceed 30 inches and 15 pounds — fish that grow large eating the eggs and flesh of the millions of sockeye salmon returning to the Bristol Bay watershed. The river also produces world-class king salmon, sockeye, silvers, char, and grayling. King Salmon, Alaska sits at the river mouth and is the access point for nearly every Bristol Bay sportfishing operation.

Outfitters
Rapids Camp Lodge
Naknek River trophy rainbow trout lodge
Brooks Lodge
NPS-operated lodge at Brooks Camp
10-Year Flow Patterns
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Your Optimal Range
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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

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