Saaim Khan 12/06/2016 Chapter 12 Study Guide Key Content Terms (2 points each) Define and explain the significance of each Key Content Term listed below. Chisholm Trail: This was an important cattle drive trail that stretched from San Antonio, Texas to Abilene, Kansas. This trail became significant because it allowed cattle herders or cowboys to transport live cattle to certain ?cow towns? such as Abilene. The cattle would then be shipped to meatpacking centers in places like Chicago, via train from those ?cow towns?.