In his orderly, if fanciful, universe, he oriented the top of the map with north and imposed the rational grid of latitude and longitude. Ptolemy's conception held sway for centuries; this map was ...

UTM divides the globe into a grid of many zones. UTM is less commonly used than latitude and longitude and is best for those who need to work with paper maps. Related to UTM are the Military Grid ...

Explains the concepts of latitude and longitude, which are used to locate places on Earth. It describes how latitude is measured in degrees north or south of the equator and how longitude is measured ...