However, the extent of the U.S. land mass is bounded in the west by the Rockies and the deserts of the Great Basin, so in reality, the amount of arable land tha

However, the extent of the U.S. land mass is bounded in the west by the Rockies and the deserts of the Great Basin, so in reality, the amount of arable land that both countries started out with is comparable. Finally, something I can use WA for :) http://www19.wolframalpha.com/input/?i=argentina+arable+land+vs.+us http://www19.wolframalpha.com/input/?i=argentina+arable+land...