When you quote the six-figure grid reference you should put the letter of the area you are in before the numbers. Jungle 200m, Ash River 100m, Kursk 400m, Kuban 170m, Karelia 130m On OS maps, these squares are further divided into smaller squares by grid lines representing 10 kilometre spacing, each numbered from 0 to 9 from the south west corner, in an easterly (left to right) and northerly (upwards) direction. This website uses cookies to improve your experience. This is particularly important in an emergency situation. When giving directions you can provide even more accuracy to your grid reference by stating a nearby landmark or feature. Some map markings do not show up on the ground, such as council boundaries, contours and grid lines. Each incremental square measures 1,000 metres on the ground. The 1:25 000 scale map is very useful for walking, but if you use it in a car you will quickly drive off the edge! On an OS Landranger map you can find the two main grid letters (in this case TL) on the legend or the corner squares of the map. For example, the grid reference of the 100 m square containing the summit of Ben Nevis is NN 166 712. Lat Long. On OS maps, these squares are further divided into smaller squares by grid lines representing 10 kilometre spacing, each numbered from 0 to 9 from the south west corner, in an easterly (left to right) and northerly (upwards) direction. of Communications, Energy and Natural Resources. These can be a useful guide where there aren't many contour height numbers. Accept cookies A grid reference uses six figures to identify a particular spot on a map that is 100 metres square. Instructions: Find a grid reference on the Google map by simply right-clicking on the map. In the diagram below, the number 4 is in square 28 across (on the horizontal) and square 54 up (on the vertical) and therefore, the four-figure grid reference is ‘2854’. Grid references are easy if you can remember that you always have to go along the corridor before you go up the stairs. Bonus: Other ways to measure map distance. Take the numbers on the edge of the map for these two sides (downstroke of the ‘L’ first, as you would write it). Go. Let us know how you've got on in the comments below. First find the four-figure grid reference for the square and write it down with a space after each set of numbers, like this: 62_ 33_. Grid line 91 estimation 8. Using this system you can identify a 10 kilometre grid square. Footpaths and bridleways are marked as green dashes on OS Explorer maps and magenta on OS Landranger maps. That way you can give what is known as a 6 figure grid reference. Locate the grid line immediately left of the point, read the large figures labelling the line either on the top or bottom of the margin of the map. Together with spot heights, they portray the shape of the landscape, its height, the form taken by hills and valleys, the steepness of slopes, and so on. The Ordinance Survey provides a wide range of resources on map reading for both. Ireland is covered by the National Grid, that is the country is divided into 25 squares from A to Z (the letter i is not used). We'll assume you're ok with this, but you can opt-out if you wish. You can see this in diagram B. Sometimes it is necessary to be even more accurate. You can see this in diagram B. (In some cases, squares adjacent to a Grid Zone Junction (GZJ) are clipped, so polygon is a better descriptor of these areas.) Remember to start with the eastings (the first three figures) and then move up the northings (the last three). You might have noticed by now that OS maps are covered in a series of blue grid lines. Grid Reference. It is important to note that the National Grid reference is not related to longitude and latitude, even though these references are marked on the edges of our maps. Eastings 032. Every fifth contour line is printed more thickly than the others. Let’s give a grid reference for Lugnaquillia with the following steps. Then estimate in tenths from grid line to point. (Grid references may be written with or without spaces; e.g., also NN166712.) The best way to learn these symbols is to relate them to the way they appear on the ground. Maps are simply an accurate picture of the ground as seen from above. Post Code. Location (Road , Town) Go. Grids on maps serve a different function, they help to tell you, where on a map you are located. If you want to precise in your grid reference, in your mind, roughly divide each side of the grid reference box into 10. of Agriculture, Food and Marine, GIS and Dept. This quick and easy guide explains how to read a simple grid reference and explains the basics for beginners. On OS Explorer maps, the interval between contours is five metres in lowland areas and 10 metres where mountainous. To find the number of a square first use the eastings to go along the corridor until you come to the bottom left-hand corner of the square you want. The complete grid reference you should give to correctly identify Lugnaquillia would be “T 032 918”. After the letters you can quote the eastings (6) first, then the northings (3). Grid line 03 estimation 2. Quote the Northings. A Discovery series map will also give you centre of sheet coordinates in Irish Transverse Mercator (ITM) which is a newly derived GPS compatible mapping projection that is associated with the European Terrestrial Reference System 1989 (ETRS89). So if you have a map on a square metre of paper and the scale of the map is 1:50,000 and another map on the same size paper with a scale of 1:25,000, the area covered by the first map will be 4 times the area covered by the second map.