article: U.S. Route 81
links: Wichita, Kansas York, Nebraska Oklahoma Salina, Kansas Salem, South Dakota Watertown, South Dakota Chickasha, Oklahoma South Dakota Laredo, Texas North Dakota Fort Worth, Texas Texas Grand Forks, North Dakota Nebraska Kansas San Antonio Interstate 35W (Texas) United States Numbered Highways Mexico–United States border American Association of State Highway Officials Fargo, North Dakota Canada–United States border El Reno, Oklahoma