Gauge Information

Name Range Difficulty Updated Level
Big Iron Approximation
virtual-130824 250 - 1000 cfs II-III 01h21m ~ 22.62 cfs (too low)
gauge class Likely too low for reasonable whitewater run.
Virtual gauge approximates flow based on relative drainage of Big Iron versus W.Br.Ontonagon. Correlation is not assured
gauge graph
RangeWater LevelDifficultyComment
0 - 150 cfs extremely Low-somewhat Low II-III gauge is important or has warning Likely too low for reasonable whitewater run.
150 - 250 cfs somewhat Low-barely Low II-III gauge is important or has warning Possible ELF (Extreme Low Flow) run. We need your input regarding runnability and difficulty rating at various gauge readings.
250 - 500 cfs barely runnable-med runnable II-III gauge is important or has warning Likely low boatable. We need your input regarding runnability and difficulty rating at various gauge readings.
500 - 800 cfs med runnable-a bit pushy runnable II-III gauge is important or has warning Likely moderate flows. We need your input regarding runnability and difficulty rating at various gauge readings.
800 -1000 cfs a bit pushy runnable-high runnable II-III gauge is important or has warning Likely high flows. We need your input regarding runnability and difficulty rating at various gauge readings.
1000 -5000 cfs barely High-extremely High II-III gauge is important or has warning (Near) Record high flows. Caution is urged.

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