This map provides a picture of the nation's geologic basement. More than 80 pieces of crust have been added to the nation's basement since the Earth began preserving crust about 3.6 billion years ago.

The German mining engineer Georgius Agricola (1494-1555) dedicated in his textbook "De re metallica" (1556) an entire chapter to the distribution of valuable rocks in earth's crust. The written ...

Maps are an important tool for learning about the world around you. Some maps are designed to show what roads will take you where, and others are designed to tell you about the actual land in a given ...

Geologic maps don’t make headlines. You probably haven’t seen one unless you work in energy, construction, or science. Yet, over the past century, these documents have quietly shaped the way we build, ...

Minnesota news you can count on. From local stories to explanations on the state or federal government, MinnPost’s independent news is available for free with no paywall. Help us keep it this way with ...

A glance at any geological map of Europe will show the reader how the Belgian island stretched gradually in a southwesterly direction during the Permian epoch, approaching the coast of France by ...

A screen shot of “Washington's Ice Age Floods” story map from the Washington Geological Survey. Courtesy Washington Geological Survey Telling the story of a stunning geological event isn’t easy, ...

A new digital geologic map of Alaska is being released today, providing land users, managers and scientists geologic information for the evaluation of land use in relation to resource extraction, ...

A map showing the many different pieces of Earth's crust that comprise the nation's geologic basement is now available from the U.S. Geological Survey. This is the first map to portray these pieces, ...