And do you know who's fault that is? Evil Big Oil. In the 1920's and 1930's, hay farms arcoss the country went out of business because of the switch from horses to cars. The government bought a lot of the land in the depression to stabilize prices, and turned a lot of it into forests.
You beat me by 90 seconds :-)
Our county here was flooded for city reservoirs. My county alone has half a dozen reservoirs. The farms were mostly dairy/feed corn/hay. Borden’s dairy had a shipping plant here for raw milk on a railroad spur to NYC.