What kind of work is this for Union Pacific, them being one of the best RRs in America?
https://maps.google.com/maps?hl=en&ll=2 ... ,3.91&z=17
Although, heres a good example of a crossing on the US side of the border.
https://maps.google.com/maps?hl=en&ll=2 ... ,5.88&z=18
Why can't UP provide better signals in Mexico?