Tim Eicher: 63, 64, 66, 67, 86, 94
L. David Mech: 44
Courtesy of National Park Service: 3, 6, 12, 13, 16, 17, 18, 25, 26, 27, 28, 30, 31, 33, 34, 36, 39, 41, 51, 72, 80, 81, 82, 98, 99, 100, 101, 102, 104, 106
Richard Neill: author photo (back cover)
Carter Niemeyer: 8
Barry O’Neill: front cover, ix, 21, 23, 24