www 9 th Huddersfield Scouts org uk www

www. 9 th. Huddersfield. Scouts. org. uk

www. 9 th. Huddersfield. Scouts. org. uk GRID REFERENCES MADE EASY

www. 9 th. Huddersfield. Scouts. org. uk GRID REFERENCES MADE EASY A GRID REFERENCE is a number which gives a location on a map They are very useful in Scouts when we’re out hiking We can use them to find out where we’re supposed to be…. . . or if we get lost we can tell someone where we are!

www. 9 th. Huddersfield. Scouts. org. uk The grid references we usually use are SIX FIGURE references They will look something like this: 216409 A bit like a phone number!

www. 9 th. Huddersfield. Scouts. org. uk These numbers refer to the GRID which covers all maps Here they’re marked in PINK so you can see them, but they’re usually BLUE

www. 9 th. Huddersfield. Scouts. org. uk 42 The grid is labelled with GRID NUMBERS at the bottom and left sides of the map 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk The numbers at the bottom are called NORTHINGS because the label grid lines which go NORTH 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 The numbers at the bottom are called EASTINGS because the label grid lines which go EAST 41 40

www. 9 th. Huddersfield. Scouts. org. uk Each Northing refers to the column to the right of it’s grid line 21

www. 9 th. Huddersfield. Scouts. org. uk Each Easting refers to the row above it’s grid line

www. 9 th. Huddersfield. Scouts. org. uk Where are these NORTHINGS and EASTINGS in the Grid Reference? 40 21 216409 NORTHING EASTING

www. 9 th. Huddersfield. Scouts. org. uk Both numbers combined give a square on the map. . . The grid reference of this square is 21 40 21

www. 9 th. Huddersfield. Scouts. org. uk How do you remember WHICH COMES FIRST though? Well, just remember NORTHINGS FIRST …and that NORTHINGS are the numbers along the bottom, labelling the lines that go NORTH!

www. 9 th. Huddersfield. Scouts. org. uk GRID REFERENCES MADE EASY EXERCISE ONE FIND THE SQUARE You’ll have a map between two, and a list of 6 figure grid references - just find the big square for each one

www. 9 th. Huddersfield. Scouts. org. uk OK so we now know how to find the square from these numbers: 6409 21 But what about these ones? What are they for?

www. 9 th. Huddersfield. Scouts. org. uk Well the 40 and 21 only give you a big square one kilometre wide! 1 km 40 21 Not much use if you need to know where to go exactly!

www. 9 th. Huddersfield. Scouts. org. uk So we split each square into 100 smaller squares. . .

www. 9 th. Huddersfield. Scouts. org. uk Each square is labelled like the grid before, but with just one number from 0 to 9 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9

www. 9 th. Huddersfield. Scouts. org. uk So, same as before, a square is identified by a NORTHING and an EASTING Remember, NORTHING first So what’s the two numbers which identify this square? 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9

www. 9 th. Huddersfield. Scouts. org. uk That’s right: 4 and then 7 4 first as it’s the NORTHING 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9

www. 9 th. Huddersfield. Scouts. org. uk Then 7 as it’s the EASTING 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9

www. 9 th. Huddersfield. Scouts. org. uk 42 OK, let’s put it all together… See the spot height marked 375 in the square below? 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 Let’s find out it’s full 6 figure reference ______ 41 40 20 First, what square is it in? 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 Yes, 21 - 40! But where does this fit into the 6 figure reference? 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 21____ 21 first 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 21_40_ Then 40 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 Both together. . . 41 40 20 21_40_ 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 Now we need to look at the missing two figures: 21_40_ 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 21_40_ So we add the grid - usually you do this in your mind! 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 21_40_ The spot height is in this square 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 9 Zooming in. . . 8 7 2 212 _40_ 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9

www. 9 th. Huddersfield. Scouts. org. uk 42 So now we have the full grid reference: 212402 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 41 OK, what about the station in Llangollen? ______ 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk 42 41 OK, what about the station in Llangollen? 214422 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk OK, where’s this one. . . 204408 42 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk OK, where’s this one. . . 204408 Answer: Bank Fm 42 41 40 20 21 22 23

www. 9 th. Huddersfield. Scouts. org. uk GRID REFERENCES MADE EASY EXERCISE TWO PRACTISE MAKES PERFECT You’ll have a map between two, challenge each other to give the grid ref for a place, and the places for given refs