Plymouth, Washington
Introduction '''Plymouth''' is an unincorporated community in Benton County, Washington, United States. Plymouth is located on the Columbia River across from Umatilla, Oregon. It is south of the Tri-Cities and is served by Interstate 82.It was named by early settlers who felt a nearby rock promontory resembled Plymouth Rock.File:Plymouth Washington as seen looking north from the mouth of hte Umatilla across the Columbia - July 2013.JPG|Plymouth, Washington as seen from the Oregon side of the Columbia River at the mouth of the Umatilla River.File:Plymouth Washington - post office - July 2013.JPG|Plymouth, Washington post office as seen in July 2013.
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