Interesting. I concede that the actual location may not be totally correct.  Texum is an historical railroad location from the Southern Pacific days, which could be interpreted to include the area from the south switch of the Texum siding (at Griffith Lane, which Union Pacific's location of the switch is "CP Texum"  -- CP for Control Point, meaning the switch there is controlled by centralized traffic control) and includes the wye which I marked with my note.  The wye is the junction of Union Pacific's Black Butte and Modoc Subdivisions and is referred to as Texum.

That said, I withdraw my note. Thanks!