by Donald J. Leopold
by Karl B. McKnight, Joseph R. Rohrer, Kirsten McKnight Ward, Warren J. Perdrizet
by Tim Lahaye, Jerry B. Jenkins
by Aidan Sammons
by Karen Cushman
by Michael Adamovic
by U. S. National Geographic Society Staff, National Geographic Maps Staff
by U. S. National Geographic Society Staff, National Geographic Maps Staff, National Geographic Maps - Trails Illustrated
by Ross O'carroll-kelly