Curiously this lines up with the locations decimated by the Dust Bowl [1]. There was a mass migration of millions of people westward towards California during t

Curiously this lines up with the locations decimated by the Dust Bowl [1]. There was a mass migration of millions of people westward towards California during the 1930s once the agricultural industry there collapsed. The proximate cause for that line might be farming techniques poorly adapted to the prairie ecosystem which caused a massive ecological collapse. [1] https://en.wikipedia.org/wiki/Dust_Bowl https://en.wikipedia.org/wiki/Dust_Bowl