Acknowledgments: Many people helped on the project. Ian Ferris proposed the idea. Cartographer colleagues Jim Eynard, Joe Milbrath, and Mike Schower drew the 3D buildings, giving the map panache. Melinda Schmitt assisted on the verso. And my special thanks go to Johanna Lombard at Grand Canyon for coordinating the project, providing content advice, and reviewing the map with an eagle eye.

Tom Patterson

US National Park Service, Harpers Ferry Center