"This book is not so much an historical study as a careful and intelligently drawn portrait of a world. . .that of the Great Plains during the period 1630-1834. [Mari Sandoz's] point of focus is the hunting of the beaver, but the cumulative effect of the study is much broader than the conventional historical examination. Her essential concern is ecological: the relations of living creatures with each other and with their physical world. It is this perspective, unique among chroniclers of the fur trade, that gives the book its very considerable value. . . . Miss Sandoz's treatment of the Indian role is a good deal more complete than most studies; her sources include Indian documentation as well as the more conventional white man's documentation."—Colorado Magazine

"The fate of the Plains Region was inextricably bound up with the fate of the buffalo; they fell together. This is the story Miss Sandoz has to tell, and she tells it beautifully, forcefully, epically. . . . A procession of interesting frontier figures, red and white [Wild Bill Hickok, Lonesome Charlie Reynolds, Buffalo Bill, Sheridan, Custer, and Indian chiefs Whistler, Yellow Wolf, Spotted Tail, Sitting Bull, passes through the narrative, briefly but sharply characterized."—New York Times Book Review

"Mari Sandoz has brought into focus the materials, written down with power and clarity, of a mighty movement."—J. Frank Dobie, New York Herald Tribune