More of North America’s land is covered by rivers than we thought, according to a new map. Scientists came up with a way to use satellite images to estimate the width of rivers and found that ...

It offers routable topography maps of North America, ... It comes with preloaded topographic maps with 3D terrain of North and South America and U.S. public and private landowner information.

To create the map, the researchers amassed over 2,000 stress orientations taken across North America, of which 300 are brand new. These measurements were taken from boreholes—long, narrow shafts ...