Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

The Imperial Valley has been recognized as one of the most unique places for geological study. It may not seem like much to ...

A new online tool from the University of Arkansas at Little Rock makes it easy to view how the capital city has evolved over ...

The oldest surviving world map, known as the Imago Mundi, offers a fascinating glimpse into ancient Babylonian life. Dating ...

Imagine that a massive ice sheet covered Canada and oozed down over a large part of the northern United States, like icing ...

America the beautiful can also be America the affordable with a National Park Pass—the secret to scenic savings.