Highway 42 runs northwest from where Highway 24 crosses the BNSF Railway's Northern Transcon,  a route operated by what Railway?
Northern Transcon The Northern Transcon, a route operated by the BNSF Railway, traverses the most northerly route of any railroad in the western United States. This route was originally part of the Chicago, Burlington and Quincy Railroad, Northern Pacific Railway, Great Northern Railway and Spokane, Portland and Seattle Railway systems, merged into the Burlington Northern Railroad system in 1970.
La Junta Subdivision The La Junta Subdivision is a railway line owned, maintained and operated by the BNSF Railway. The line stretches for 395 miles across the south-central and southwestern parts of Kansas and the southeastern part of Colorado. The line branches off from the Emporia Subdivision at Ellinor, Kansas, and runs through Newton, Hutchinson, Dodge City and Garden City, all within the state of Kansas. The line connects with Boise City Subdivision at Las Animas Junction in Las Animas, Colorado, which connects it further to La Junta, Colorado.