Topographic Maps
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How to use area and grid references to read a topographic map.
Last updated 8:32 AM on 4/23/26
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7 Terms
1
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Area references (AR)
Four digit numbers for a whole square.
2
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Grid references (GR)
Six digit numbers for exact points.
3
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Eastings
Lines that go up and down that show how far east somethings is.
4
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Northings
Lines that go left to right that show how far north a place is.
5
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When finding the AR of a point that’s not on the intersection:
Look at the bottom left hand corner.
6
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When the AR is across two boxes
ARa-b
7
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Contour Lines
Show how high something is.