Map of US 51 and family, and US 49
US 49 is represented by the purple line from Piggott AR to Gulfport MS. South of Clarksdale MS, the route splits into US 49E and US 49W.
US 51 is the purple line beginning in Hurley WI. Its current southern terminus is in Laplace LA; the red line east of there to New Orleans is the historic extent of US 51.
US 151 is the blue line from near the Amana Colonies IA to Manitowoc WI.
