Universal Transverse Mercator - UTM Projection
A grid system based upon the Transverse Mercator projection. The UTM grid extends North-South from 80oN to 80oS latitude and, starting at the 180o Meridian, is divided eastwards into 60, 6o zones with a half degree overlap with zone one beginning at 180o longitude. The UTM grid is used for topographic maps and georeferencing satellite images.