Discovered in a remote Ottoman town in 1884, the Madaba Map is both a masterpiece of Byzantine design and a working map of Jerusalem and the sixth-century Middle East. A detail of the Madaba Map ...

Decreasing precipitation and rising populations could bring a perfect storm of water shortages for the United States. Where is our water going? A thunderstorm sweeps across Nevada, a state in ...

This is a forest type map of Redwood. The forest cover type illustrated on this map is determined by where it most frequently occurs within its native range and at the frequency of occurrence.