People have always asked me how I know if a river is fishable – which basically means that it is clear and low enough to reasonably expect to catch fish, and is safe enough for watercraft navigation. All of this can generally be determined by the river gauges even if you have never been to or seen the river! All you have to do is simply learn how to read the gauge and understand a little bit about what lakes and dams are built for and have to do with the water that comes in from upstream. If there is no dam, it is even easier to read the gauge and figure out what is going to happen from a rain event.
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