References:Portland Creek (Ivans Tail)-20190708185924

Location: Portland Creek (Ivans Tail) Reported by: ARosen Date: 6 Jul 2019 Comment: Waterflow: Moderate Very Low Low Moderate-Low Moderate Moderate-High High Very High Extreme 0% - 40% 40% - 70% 70% - 90% 90% - 110% 110% - 130% 130% - 160% 160% - 200% >200% Very Low: Water flow should not represent any danger (class B = a2). Low: Not as fun, but should be safe even for beginners (class B/C = a3). Moderate-Low: A bit low, still fun but not very challenging (class C1- = a4-). Moderate: Challenging but not dangerous for intermediate canyoneers (class C1 = a4). Moderate-High: A bit high, quite challenging but not too dangerous (class C1+ = a4+). High: High water, only for experienced swift water canyoneers (class C2 = a5). Very High: Dangerously high water, only for expert swift water canyoneers (class C3 = a6). Extreme: Extremely dangerous high water, may be unsafe even for experts (class C4 = a7).

Historical reference pictures used in Waterflow analysis

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6 Jul 2019 Moderate

Credits

References:Portland Creek (Ivans Tail)-20190708185924

Information provided by automated processes. Authors are listed in chronological order.

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