Note: Purple can be used to show information added over the original map detail (updates).
Grey: on the back of the map for a glossary of terms, and abbreviations. Green: wooded areas, orchards, and vineyards. Blue: lakes, streams, falls, rapids, swamps and marshes, names of bodies of water and watercourses, magnetic declination and UTM (Universal Transverse Mercator) grid information. The availability of digital mapping and the potential for satellite positioning. I know there is a New Zealand Map Grid reference system. Brown: contour lines, spot elevations, sand and eskers This system, generally known as the Irish Grid, is shared by the Ordnance Surveys of Ireland, based in Dublin and Belfast, and is widely used professionally throughout Ireland to describe positions on the earth’s surface in an unique and unambiguous manner. Having an article specific to one country may mean information common to all mapping reference. Orange: unpaved roads and unclassified roads and streets. Red: paved roads, highway numbers, interchange exit numbers, certain symbols, names of major transportation routes and a red tint for urban development. Black: buildings, railways, power transmission lines, geographical names (toponymy), certain symbols, geographic coordinates, precise elevations, border information, and surround information. On a polychrome map, each feature is represented by a colour. 1:50 000 National Topographic System map sample - 058F11 Resolute, Nunavut Feature types on a polychrome topographic map
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