A east bound z-train comes off of main 2 on to single track main on
the Avard sub at Fairmont Oklahoma on 1/26/03. The BNSF Avard sub is
double track from Fairmont to Enid, main 2 is the original Frisco
Avard sub and main 1 the original Santa Fe Enid sub from Kiowa Kansas
to Guthrie Oklahoma. The two lines crossed at Fairmont, but after the
merger the diamond was replaced with a switch and the Enid sub was
removed from service.