Something very strange appears to be happening deep, deep underneath the U.S. Midwest and the Ohio Valley. North America’s geological core has persisted for more than a billion years; it’s what ...

National Geographic cartographers fill a key map gap on the North American Continental Divide and pay tribute to the Father of American Mapmaking A portion of the Trails Illustrated Wind River Range ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

How about a gorgeous volume of old maps that helped define and develop our state, that also includes cogent historical context for each image? Your wish is our command. Just out: “Texas Takes Shape: A ...