Rising from Sahara sands, the uneven peaks hold clues to a much wetter environment in the ancient past.
Published Mar 9, 2013
These images show the extent of wildfires burning in the Cascade Mountains southeast of Portland, Oregon.
Published Sep 2, 2011
After burning for almost a month, this wildfire complex in northwest California was 65 percent contained.
Published Aug 26, 2015
In July 2014, a wildfire in northern Washington destroyed hundreds of homes.
Published Jul 21, 2014
Dense smoke pours from a fast-growing wildfire in northern Nevada in this image from October 3, 2011.
Published Oct 6, 2011
Lightning ignited a fire near Happy Camp, California, in August that had burned over 99,000 acres (40,000 hectares) as of September 9, 2014.
Published Sep 8, 2014
The largest fire in Washington’s state history charred tens of thousands of acres and destroyed 322 homes in summer 2014.
Published Aug 13, 2014
A complex of fires in southwestern Colorado blazed through beetle-killed spruce forests in June 2013.
Published Jun 24, 2013
Taken on September 9, this image shows the extent of the High Cascades Complex fire burning in northern Oregon.
Published Sep 16, 2011
Thick smoke pours from the fires in the Honey Prairie Complex in this image from June 19, 2011.
Published Jun 20, 2011
