References:Archer Creek (Columbia River Gorge)-20230830164739

Location: Archer Creek (Columbia River Gorge) Reported by: Fil Date: 29 Aug 2023 Comment: Waterflow: Very Low 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Historical reference pictures used in Waterflow analysis

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29 Aug 2023 Very Low	1 Dec 2019 Moderate-Low	15 Jun 2021 Moderate-Low	26 Nov 2021 Moderate

Credits

References:Archer Creek (Columbia River Gorge)-20230830164739

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