State Trunk Highway 15 is a 14.8-mile state highway in Outagamie County in the US state of Wisconsin that runs east–west and provides a shortcut to Appleton from U.S. Highway 45 for travelers inbound
Looking west along WIS 15 (and CTH-T) from its eastern terminus, immediately northwest of Appleton, August 2006
Looking southeasterly along WIS 15 from its eastern terminus, immediately northwest of Appleton, February 2013