The U.S. Geological Survey is scanning 250,000 of its historic maps to put online. The U.S. Geological Survey (USGS) is nearly halfway through its release of more than 250,000 historical topographic ...

USGS has unveiled its most detailed national geologic map, giving the public a free, interactive way to explore underground ...

In August, the United States Geological Survey (USGS) released its most extensive geological map to date. It's called The Cooperative National Geologic Map, and it provides an interactive look at the ...

In what the agency hopes will spur a major leap in American geoscience, the U.S. Geological Survey has released a new mapping tool that allows anyone to peer into the earth beneath their feet. Dubbed ...

For the first time, the U.S. Geological Survey released maps identifying potential ground-shaking hazards from both human-induced and natural earthquakes. In the past, USGS maps only identified ...