Rivers and Grid References What Are FourFigure Grid

Rivers and Grid References

What Are Four-Figure Grid References? 80 Four-figure grid references are used to locate a particular grid square on a map. 79 Why might this be useful? To create a four-figure grid reference you use the grid lines and grid numbers. 78 77 01 02 03 04 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Four-Figure Grid References? 80 The horizontal gridlines are called northings and they increase as you move northwards. 79 The vertical gridlines are called eastings and they increase as you move eastwards. 78 77 01 02 03 04 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Four-Figure Grid References? 27 How to find a grid square. If the grid reference is: 26 3226 The second two numbers give the northings. Locate the point where the easting and northing grid lines meet. This is the bottom Left-hand corner of grid square 3226… …the campsite. 25 24 northings The first two numbers give the eastings. L 23 22 31 32 33 34 35 36 eastings viewpoint picnic site Remember…. eastings telephone golf course then northings! camp site church Along the corridor and up the stairs!

What Are Four-Figure Grid References? 27 Your Turn! 26 a. 1 What OS map symbol is found in each of these grid squares? 25 24 b. 3124 viewpoint c. 3323 picnic site 22. What is the grid reference for the: a. church? 3524 b. telephone? 3122 northings a. 3526 golf course 23 22 31 32 33 34 35 eastings viewpoint telephone camp site picnic site golf course church 36

6 Figure Grid References C is located at grid reference 632341 Can you locate A and B? (C) Ordnance Survey A: 615335 B: 635324