US Highway 40
West Endpoint: Colorado State Line west of Weskan
East Endpoint: Missouri State Line in Kansas City
Counties Passed through: Wallace, Logan, Gove, Trego, Ellis, Russell, Lincoln, Ellsworth, Saline, Dickinson, Geary, Riley, Pottawatomie, Wabaunsee, Shawnee, Douglas, Leavenworth, Wyandotte
Highway 40 begins at the Colorado border near the town of Weskan, and followed the old Kansas Pacific Mainline, meeting K-27 at Sharon Springs and coinciding with K-25 for 7 miles in Logan County to a href="highways.php?entry=70">I-70 and US 83 at Oakley. From Oakley, 40 joins I-70 across Kansas, meeting US 283 at WaKeeney, US 183 at Hays, US 281 at Russell, I-135/US 81 at Salina, US 77 at Junction City, and US 75 at Topeka before turning north off and running parallel to I-70 into Lawrence, meeting US 59 in Lawrence. 40 and 59 turn North in the downtown area, crossing the Kansas River and venturing north to I-70. After intersecting with I-70, 40 and 59 journey north a half mile before meeting with US 24 at what is known locally as Teepee Junction. 40 leaves 59 and Joins 24 east to K-32 before venturing northeast to Tonganoxie, where 24-40 turns east to Kansas City. At the junction with US 73 and K-7, 24-40 follows K-7 south to the junction with I-70 at Bonner Springs, where US 24 and US 40 rejoin I-70 all the way to the state line.