Washington State Route 102 is a short highway north of Shelton, Washington that goes from U.S. Highway 101 to the Washington State Corrections Center, about 2 miles. After that, the highway abruptly ends. The road continues on to Matlock, Washington. The road is in Mason County, WA. A road is a strip of land, smoothed or otherwise prepared to allow easier travel, connecting two or more destinations. ... Shelton is a city located in Mason County, Washington. ... U.S. Highway 101, or U.S. Route 101 (U.S. 101), is a north-south highway that is aligned along the Pacific West Coast of the United States. ... Mason County is a county located in the state of Washington. ...