Six-figure grid references

Report
www.geointeractive.co.uk
Six-figure grid references
573287
548284
Six-figure grid references
Six-figure grid references are used to locate objects or places within a grid
square and so are much more accurate than four-figure grid references. In order
to use six-figure grid references, you need to use the numbers on the grid lines
plus an estimate of where an object is located within the grid square.
29
In this example, the tree
symbol is located at 344286.
Let’s see how that works in a
bit more detail….
28
34
35
Six-figure grid references
The first task is to give the four-figure
grid reference of the square. This is:
29
34 4 28 5
Now imagine the bottom and side of
the grid square divided into tenths.
The tree is located 4 tenths of the way
along the bottom of the square.
So we add a 4 to our grid reference.
5
The tree is located 5 tenths of the
way up the side of the square.
So we add a 5 to our grid reference.
28
4
34
35
The six-figure grid
reference is 344285
CLICK me
Six-figure grid references
Time now for a little test. FIVE symbols are going to be highlighted and you have
TEN seconds to write down the six-figure grid reference for each symbol.
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10
9
8
7
6
5
4
3
2
1
1
CLICK to
CLICKstart.....
for
the next
symbol
1
28
34
35
Six-figure grid references
29
10
9
8
7
6
5
4
3
2
1
2
2
1
CLICK for
the next
symbol
28
34
35
Six-figure grid references
29
3
10
9
8
7
6
5
4
3
2
1
3
2
1
CLICK for
the next
symbol
28
34
35
Six-figure grid references
29
4
3
2
10
9
8
7
6
5
4
3
2
1
4
1
CLICK for
the next
symbol
28
34
35
Six-figure grid references
29
4
5
3
9
8
7
6
5
4
3
2
1
5
2
1
OK all finished –
let’s check the
answers next.
28
34
10
35
Six-figure grid references
ANSWERS:
29
1 = 343281
2 = 349285
4
5
3 = 345285
3
2
4 = 341289
5 = 347287
CLICK to
see the
Remember – you
answers…
should be no more
1
28
34
35
than one number
out on the red
figures
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Six-figure grid references
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