The American bison may have been, at one time, the most abundant large wild mammal on earth. The historical references to their immense herds are difficult to comprehend; such is the scale of their numbers and the sheer improbable spectacle the authors of these reports try to convey. Perhaps these images are also difficult for us to understand because they inevitably inspire in the sensitive reader a feeling of great sadness that such a wondrous prospect must now be denied us all, forever. This article originally appeared in Sports Afield magazine.