Puget Sound Shore Railroad Puget Sound Shore Railroad The Puget Sound Shore Railroad and successor Northern Pacific and Puget Sound Shore Railroad built a branch line of the Northern Pacific Railroad between Puyallup and Seattle, Washington, U.S., and partially constructed a line around the east side of Lake Washington to Woodinville. After Congress chartered the Northern Pacific Railroad (NP) in 1864, the communities along Puget Sound competed to be its Pacific terminus. Tacoma, about south of Seattle, became the winner in July 1873, when the NP, then building north from Portland, selected it. Seattle businessmen immediately incorporated the Seattle and Walla Walla Railroad and
Lake Kapowsin Lake Kapowsin Lake Kapowsin is a lake in Pierce County, Washington, about halfway between Tacoma on Puget Sound, and Mount Rainier in the Cascade Mountains. The lake is long and wide, lying in a channel formed by meltwater from the Puget lobe of the Vashon glacier during the Pleistocene glaciation. A small unnamed island lies in the northern half of the lake. As indicated by a drowned forest in the lake and other evidence, the Puyallup River was inundated about 550 years ago by a lahar from Mount Rainier called the Electron Mudflow. The mudflow partially filled the channel (leading