Glorieta Pass
In 1879 , the New Mexico and Southern Pacific Railroad constructed a railroad through the pass , which became part of the second North American transcontinental railroad in March 1881 . The NM&SP was absorbed into its parent company , the Atchison Topeka and Santa Fe Railroad in 1899 , and the Santa Fe used the route for their Chicago to Los Angeles trains , including the famed "El Capitan" and "Super Chief" . Now part of the BNSF system , this remains the route of Amtrak's "Southwest Chief" , with one passenger train each direction daily , but little freight . 
<triplet> Amtrak <subj> Southwest Chief <obj> item operated <triplet> Southwest Chief <subj> Amtrak <obj> operator