Tucson is bisected by one of the busiest freight rail corridors in the country. The Union Pacific tracks run just north of Downtown Tucson, which is where I spied two freights heading in opposite directions…
![](https://westernskycommunications.com/wp-content/uploads/city-nature-yard-closeups-64.jpg)
Tucson is bisected by one of the busiest freight rail corridors in the country. The Union Pacific tracks run just north of Downtown Tucson, which is where I spied two freights heading in opposite directions…