References:Parker Canyon-20170316232034

Location: Parker Canyon Reported by: Lucach Date: 13 Mar 2017 Comment: Photo courtesy of Todd Martin 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Historical reference pictures used in Waterflow analysis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 Apr 2012 Very Low	31 Mar 2013 Low	19 Mar 2022 Low	26 Mar 2017 Moderate-Low	15 Feb 2016 Moderate	13 Mar 2017 Moderate	13 Mar 2010 Very High	13 Mar 2010 Very High	15 Mar 2013 Very High	15 Mar 2020 Very High	12 Mar 2023 Very High	3 Oct 2018 Extreme