Puget Sound lobe of Cordilleran Ice Sheet, final ice age Courtesy Washington State Division of Pure Assets

Starting about 14,900 years in the past, salmon start to colonize Puget Sound. Over the past ice age, when a 3,000-foot-thick glacier moved out of Canada and traveled as far south as Olympia, no salmon, or every other fish species, may inhabit the Puget lowland. Virtually two thousand years would move earlier than circumstances grew to become proper for the salmon to enter the not too long ago excavated lowland, which they did when a connection was made between what’s now the Strait of Juan de Fuca and Puget Sound.

LINK (through Historical past Hyperlink)

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