I drove with my daughter to the Lewiston, ID/Clarkston, WA area yesterday. The Clearwater River comes in from the left flowing into the Snake river which is the state line between Lewiston, Idaho on the left and Clarkston, Washington on the right. The main industry is paper and timber products production. Because the portion of the Snake River between its confluence with the Columbia River near Pasco, Washington, and Lewiston is navigable by some oceangoing vessels, Lewiston has the distinction of being Idaho's only seaport and the western United States' farthest inland seaport. Barges of timber products, grain and other goods are shipped via the Snake-Columbia system to the Pacific Ocean. Clarkston, Washington (on the right) was officially incorporated on August 14, 1902. The name Clarkston is a reference to William Clark, of Lewis and Clark fame. Lewiston, Idaho is named for Meriwether Lewis, and is the larger of the two cities.