Deadly and destructive wildfires erupt in the US each year, burning millions of acres and destroying thousands of homes. CNN is tracking the trends.

Wildfires in Canada, the United States and Mexico often send smoke throughout the continent. Follow our latest coverage here.

The Cooperative National Geologic Map offers a complete and detailed look at the bedrock and fault systems of the continental United States. The first geological map of the United States was published ...

The USGS has released a new satellite portrait of the nation that highlights how dramatically the American landscape has changed.

Add Yahoo as a preferred source to see more of our stories on Google. There have been 307 hurricanes that made landfall in the mainland United States since records began in 1851, and now you can see ...