Question: The MKT Nature and Fitness Trail runs nine miles in the right of way of what former Class 1 railroad company that was established in 1865, and had its last headquarters in Dallas?
Sentence (from "Missouri–Kansas–Texas Railroad"): Established in 1865 under the name Union Pacific Railway, Southern Branch, it came to serve an extensive rail network in Texas, Oklahoma, Kansas, and Missouri.
Relevant evidence: Yes