Map of US highway 77 and family

US 77 is represented by the purple line beginning in Brownsville TX. Its current northern terminus is in Sioux City IA; the red line extending north of there to Ortonville MN is the historic extent of US 77.

US 177 is the blue line from South Haven KS to Madill OK.

US 277 is the blue line beginning in Carrizo Springs TX. Its current northern terminus is in Newcastle OK; the red line extending north of there to Oklahoma City is the historic extent of US 277.

US 377 is the blue line from Stroud OK to Del Rio TX.