US Route 73 is the shortest of all odd-numbered routes in the seventies, running from the southeastern corner of Nebraska southeast to the Kansas City, Kansas area.  The northern end is at US Route 75 in Dawson, Kansas.  From there, US Route 73 zigzags east and south through southeastern Nebraska and northeastern Kansas, to end in Bonner Springs, Kansas at Interstate 70.  The southern third of US Route 73 is duplexed with Kansas Highway 7, which continues south beyond Interstate 70, where US Route 73 ends.  US Routes 24 and 40 both use the southernmost mile of US Route 73 to transfer from Interstate 70's eastern leg to a different alignment extending west.

My photo from US Route 73 comes from its junction with US Route 36 in Hiawatha, Kansas. This northbound trailblazer shows people leaving the junction that they're proceeding northward on US Route 73. It also shows people that they're also going north on US Route 159, which follows the same road. This photo was taken as I was trying to drive all of US Route 36 in July, 2026.

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