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Idaho · Unknown Co.

Big Wood River

· 45 mi · Class II
Optimal: 225–675 CFS · USGS #13139510
446 avg
867CFS
3.20 ft gauge height
Above Optimal
Stable
Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 446 cfsHist. median: 0 cfsUSGS #13139510
Bureau of Land Mangement

About

Bureau of Land Management sections define much of the Big Wood River's 45-mile run, with Class II water averaging 446 CFS through an optimal range of 225–675. USGS gauge 13139510 tracks the flows that determine whether the river runs at its mellow lower end or pushes toward the upper threshold where Class II features become more consequential. The gradient and character shift as flows change within that 450 CFS spread, but specific access points and section details require coordination with BLM offices that manage the corridor.

Solunar Fishing Activity
🌒
Waxing Crescent
15% illumination
Poor
Moon overhead
11:13 AM
Moonrise
3:31 PM
Moonset
6:54 AM
Moon underfoot
11:13 PM
Next full moon: May 3111 days
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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