State Trunk Highway 13 (often called Highway 13, STH-13 or WIS 13) is a state highway running north–south across northwest and central Wisconsin. WIS 13 serves as a major north–south route connecting the communities of Wisconsin Dells, Wisconsin Rapids, Marshfield and Ashland. WIS 13 is part of the Lake Superior Circle Tour from its northern/western terminus to Ashland at is eastern junction with U.S. Highway 2 (US 2). The road also provides access to the Apostle Islands National Lakeshore off the Lake Superior shoreline at Bayfield. The highway is two-lane surface road with the exception of various urban multilane road sections. Route description Wisconsin Dells to Marshfield WIS 13 begins at Interstate 90/Interstate 94 (I-90/I-94) and passes east through Wisconsin Dells as an urban multilane highway, crossing US 12 and merging with WIS 16 and WIS 23 east through the city. WIS 13 then turns north, while WIS 23 heads east and WIS 16 heads south one mile (1.6 km) east of the city. WIS 13 follows the Wisconsin River north through Adams County, passing through Plainville, Adams and Friendship. The highway then crosses WIS 21 north of Friendship and finally passes through Cottonville, Big Flats and Rome before entering Wood County. In Wood County, WIS 13 crosses WIS 73 east of Nekoosa before entering Wisconsin Rapids. WIS 13 joins WIS 54 south at the Riverview Expressway, a short bypass of the downtown area. The two highways split west of their join point, and WIS 13 merges with WIS 73 north. At the junction with WIS 34, WIS 73 turns westerly via West Grand Ave, and WIS 13 continues due northerly concurrent with WIS 34 for approximately before intersecting the US 10 freeway west of Junction City at exit 204. There, WIS 13 turns to follow US 10 west toward Marshfield, following the US 10 expressway bypassing Milladore, Blenker, and Auburndale. At exit 186 (CTH-A/Veterans Parkway) on the south side of Marshfield, WIS 13 exits the US 10 expressway to head north into Marshfield on Veterans Parkway. WIS 13 enters Marathon County after passing through Marshfield. The four-lane road in Marshfield is also known as Veterans Parkway. This section was built to alleviate congestion in downtown Marshfield along Central Avenue. Marshfield to Ashland WIS 13 heads northwest to Spencer where it turns north to follow the Marathon–Clark county line, passing through Unity, Colby and Abbotsford (where it junctions with WIS