Which region of Texas change the most because railroad lines?

The Panhandle region of Texas changed the most because of the railroad lines. The main railroad lines that went through the Panhandle were the Fort Worth and Denver City Railway and the Atchison, Topeka, and Santa Fe Railway. These railroad lines allowed cattle to be shipped from the Panhandle to the rest of the country. They also brought settlers to the Panhandle, which led to the development of towns and cities in the region.