They are numbered - the numbers increase to the east. The horizontal lines are called northings as the numbers increase in an northerly direction. Four-figure grid references can be used to pinpoint a location to within a square.
To find the number of the square:. In this case, the tourist information office is in grid square Sometimes it is necessary to be even more accurate. In this case you can imagine that each grid is divided into tiny squares.
The distance between one grid line and the next is divided into tenths. Grid references A grid of squares helps the map-reader to locate a place. Things to remember: When you give a grid reference, always give the easting first: " Along the corridor and up the stairs ". To find the number of the square: Start at the left-hand side of the map and go east until you get to the bottom-left-hand corner of the square you want.
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