Terry Tempest Williams is an author, naturalist, and conservationist. She has also been called “a citizen writer,” who speaks on behalf of an ethical stance toward life. She has written nine books, including the most recent The Hour of Land: A Personal Topography of America’s National Parks. She is currently the writer in residence at Harvard Divinity School and otherwise divides her time between Castle Valley, Utah, and Jackson Hole, Wyoming. (Photo: Cheryl Himmelstein)