Iowa · Unknown Co.

Rock River

· 54 mi · Class
Optimal: 300–900 CFS · USGS #06483500
608 avg
285CFS
4.95 ft gauge height
Below Optimal
→Stable
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 608 cfsHist. median: 0 cfsUSGS #06483500
State

The Rock River is a tributary of the Big Sioux River in northwestern Iowa.

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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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