Title: Grid reference system - Wikipedia
Headings: Grid reference system
Grid reference system
Contents
Grid coordinates
Notation and conventions
Grid north
Types
See also
References

Content: Contents
1 Grid coordinates
1.1 Notation and conventions
2 Grid north
3 Types
4 See also
5 References
Grid coordinates
UTM zones on an equirectangular world map with irregular zones in red
Easting and northing are geographic Cartesian coordinates for a point. Easting is the eastward -measured distance (or the x - coordinate) and northing is the northward -measured distance (or the y -coordinate). When using common projections such as the transverse Mercator projection, these are distances projected on an imaginary surface similar to a bent sheet of paper, and are not the same as distances measured on the curved surface of the Earth . Easting and northing coordinates are commonly measured in metres from the axes of some horizontal datum. However, other units (e.g., survey feet) are also used. The coordinates are most commonly associated with the Universal Transverse Mercator coordinate system (UTM), which has unique zones that cover the Earth to provide detailed referencing. Notation and conventions
Locations can be found using easting/northing (or x, y) pairs. The pair is usually represented conventionally with easting first, northing second. For example, the peak of Mount Assiniboine (at
WikiMiniAtlas
50°52′10″N 115°39′03″W
﻿ / ﻿ 50.86944°N 115.65083°W ﻿ / 50.86944; -115.65083
) in UTM Zone 11 is represented by 11U 594934 5636174.