Kuskokwim River

Bethel Census Area / Yukon-Koyukuk Census Area / Dillingham Census Area · 724 mi · Class I–II
Optimal: 30000–150000 CFS · USGS #15304000
55,000 avg
105,000CFS
10.32 ft gauge height
Optimal
Stable
Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
⏳ Loading live storm reports for AKNWS · SpotterNet
As an Amazon Associate, RiverScout earns from qualifying purchases. Book links on this site are affiliate links — clicking through and buying supports our river coverage at no extra cost to you.
Avg flow: 55,000 cfsHist. median: 49,500 cfsUSGS #15304000
Yukon Delta NWR · ADF&G Subsistence Priority Fishery

About

Kuskokwim River, Alaska — Yup'ik Subsistence Lifeline, Second-Largest Subsistence Fishery. USGS gauge 15304000 tracks a river that averages roughly 55,000 cubic feet per second, with a historic flow near 49,500 cfs and an optimal window running from 30,000 to 150,000 cfs. Rated Class I–II, the Kuskokwim is not a whitewater proposition but a broad, working corridor. It drains some 48,000 square miles of southwestern Alaska — the second-largest drainage in the state, behind only the Yukon — flowing 724 miles from the Kuskokwim Mountains to Kuskokwim Bay.

The river's character shifts as it descends. The Upper Kuskokwim, roughly 300 miles from McGrath to Aniak, is grayling and sheefish water. The Middle Kuskokwim, about 200 miles from Aniak to Bethel, is the heart of the salmon subsistence country. The Lower Kuskokwim, the final 80 miles from Bethel to the bay, carries silver salmon and whitefish toward tidewater. Across all three reaches, the five salmon returns — Chinook, chum, sockeye, coho, and pink — are the returns around which riverside communities order their summers.

Human use here runs deep. The Kuskokwim drainage is Yup'ik and Deg Hit'an Athabascan homeland, occupied for thousands of years, with Yup'ik fish camps dotting its banks for at least 6,000 years. Place-names along the river encode Yup'ik ecological knowledge of every creek, slough, and fishing site. Traditional fish camps still operate at mouth-of-slough sites used for hundreds of generations, and subsistence salmon fishing remains the primary food source for Yup'ik families.

Sustained outside contact arrived in 1885, when Moravian missionaries established a mission at Bethel, planting an institution that would anchor the lower river for generations. Bethel, a Yup'ik community of about 6,300, became the regional hub for its surrounding villages in the Bethel Census Area. The watershed also saw a logging era stretching from the 1830s through the 1920s, tied to regional timber and railroad expansion, before old-growth exhaustion around 1910 and the rise of state forestry conservation ended large-scale cutting. The 1920s–1940s brought placer gold mining on tributaries and further growth for Bethel as a hub.

The river's Chinook run has been in crisis since the late 1990s. Declining king returns drove regulatory change and lowered harvests, straining food security for subsistence users. In 2014, after years of declining Chinook returns, the Federal Subsistence Board assumed management of the lower Kuskokwim king salmon fishery, closing the river to non-subsistence users. Those closures have continued most years since, reflecting ongoing stock-of-concern status for Kuskokwim kings. Today the river is co-managed by the Alaska Department of Fish and Game and the Federal Subsistence Board, with the Kuskokwim River Inter-Tribal Fish Commission playing a major role in harvest decisions. The lower river and its delta lie protected within the Yukon Delta National Wildlife Refuge, and the Kuskokwim carries an ADF&G subsistence priority designation. What the river offered in 1885 it still offers now — a homeland whose salmon feed the villages along its banks.

Solunar Fishing Activity
🌒
Waxing Crescent
26% illumination
Poor
Moon overhead
3:25 PM
Moonrise
10:03 PM
Moonset
8:47 AM
Moon underfoot
3:25 AM
Next full moon: Jul 2910 days
Outfitters
Kuskokwim River Safaris
Fly-in fishing trips to upper-river tributaries
10-Year Flow Patterns
See 10 years of flow patterns for this river — historical analysis is a Pro feature.Upgrade to Pro →
Your Optimal Range
Set your personal optimal CFS window per river — custom ranges are a Pro feature.Upgrade to Pro →
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.

Know the Kuskokwim River? Your local knowledge makes this page better for every paddler, angler, and guide who comes after you.
Improve This River →