BNSF 668 leads BNSF train H DYTGAL on Union Pacific's Chester Sub at Fountain, IL on 6/30/3007. While the lead unit has been changed in the system to be BNSF 668, it has no BNSF markings on it, not even the usual small BNSF stencil under the cab number. This makes it one of the very few pure Santa Fe locomotives left, at least in appearance. It's ashame it did not come through on a sunny day.