When Buffalo Ran is a classic Native American history volume by George Bird Grinnell. Seventy years ago, when some of the events here recounted took place, Indians were Indians, and the plains were the plains indeed. Those plains stretched out in limitless rolling swells of prairie until they met the blue sky that on every hand bent down to touch them. In spring brightly green, and spangled with wild flowers, by midsummer this prairie had grown sere and yellow.