WIS 57 winds for about 75 miles through the Door Peninsula in Northeast Wisconsin. Much of the southern half of the route follows the Green Bay shoreline traversing an archaeological landscape rich in prehistoric and historic resources recording 12,000 years of human use of the region. Today, the highway is the primary route into and out of the Door Peninsula's popular resort country. The WIS 57 corridor project was undertaken by WisDOT to improve and realign portions of WIS 57 and make travel through the Door Peninsula safer. Archaeological investigations associated with the highway project have provided an unparalleled opportunity to investigate the archaeological record of northeastern Wisconsin.
(Source: Benchely et al 1996)