K-25 is a 238.259-mile-long (383.441 km) south–north state highway in the U.S. State of Kansas. K-25 runs from Oklahoma State Highway 136 (SH-136) at the Oklahoma State Line to Nebraska Highway 25 (N-25) at the Nebraska border, running through Leoti, Colby, and Atwood plus many more towns along the way.

U.S. Route 56 is an east–west United States highway that runs for approximately 640 miles (1,030 km) in the Midwestern United States. US 56's western terminus is at Interstate 25 Business, US 412 and New Mexico State Road 21 in Springer, New Mexico and the highway's eastern terminus is at US 71 in Kansas City, Missouri. Much of it follows the Santa Fe Trail.