On October 20, 2001, a crowd gathered just east of Salmon, Idaho, to dedicate the site of the Sacajawea Interpretive, Cultural, and Education Center, in preparation for the Lewis and Clark Bicentennial. In a bitter instance of irony, the American Indian peoples conducting the ceremony dedicating the land to the tribe, the city of Salmon, and the nation-the Lemhi Shoshones, Sacajawea's own people-had been removed from their homeland nearly a hundred years earlier and had yet to regain official federal recognition as a tribe. John W. W. Mann's book at long last tells the remarkable and...