There’s nothing more spectacular to see than when the salmon run is on.
The insanity that salmon can detect one part per billion of the scent of their home waters is only a small thing compared to the fact that they can jump in height the equivalent of a human being leaping over a four-story building.
As they swim upstream, the current gets faster and the water becomes so steep that even an adult salmon cannot swim against it. Now they must come out of the water.
Without being species specific, salmon are anadromous. Born in freshwater, they then migrate into the ocean, returning to the stream or river of their birth to spawn. In the fall the salmon run begins and reaches a feverish pitch when the fish make the migration to their home waters.
Salmon must reach the still water of their home range before they spawn and finish their life cycle. Once they are spawned out, and the salmon run is over, the eggs will reside in the stream and hatch the following spring.