“Douglas Brinkley brings to this magnificent story of Theodore Roosevelt's crusade on behalf of America's national parks the same qualities that made TR so fascinating a figure—an astonishing range of knowledge, a superb narrative skill, a wonderfully vivid writing style and an inexhaustible energy.”

— Doris Kearns Goodwin, author of Team of Rivals

“A vast, inspiring, and enormously entertaining book.””

— New York Times Book Review