The history of Puyallup, Washington, unfolds like the pages of a captivating saga, rooted in the geological tapestry that dates back to the mists of eons past. The Puyallup Valley, cradled by the gentle slopes of the surrounding terrain, embarked on its journey through time with the cataclysmic event of an eruption from the majestic Mt. Rainier around 370 B.C. This eruption unleashed a mighty mudflow, carving a path down the Carbon and Puyallup Rivers, ultimately shaping the picturesque landscape that would come to be known as the Puyallup Valley.