If you're planning to go on a hiking or camping trip, it's important to be familiar with reading an OS map. One of the most basic things you need to know is where north is on the map. In this article, we'll go over some tips and tricks to help you find north on an OS map.
Table of Contents
Table of Contents
If you're planning to go on a hiking or camping trip, it's important to be familiar with reading an OS map. One of the most basic things you need to know is where north is on the map. In this article, we'll go over some tips and tricks to help you find north on an OS map.
Understanding an OS Map
Before we dive into finding north on an OS map, let's first understand what an OS map is. An OS map is a detailed, topographical map that shows the landscape, terrain, and features of a specific area. It's used for navigation and planning outdoor activities. OS maps come in different scales, and the most commonly used scale is 1:25,000.
Scale of an OS Map
The scale of an OS map refers to the ratio of the map's size to the actual size of the area it represents. A 1:25,000 scale means that one centimeter on the map represents 25,000 centimeters (or 250 meters) on the ground. This scale is perfect for hiking and walking, as it shows a lot of detail.
Finding North on an OS Map
Now that we know what an OS map is and its scale, let's find north on the map. There are a few ways to do this:
Using the Grid Lines
OS maps have a grid of numbered squares overlaid on top of them. The vertical grid lines represent north-south directions, while the horizontal grid lines represent east-west directions. The numbers on the grid lines increase as you move away from the bottom left-hand corner of the map. To find north, simply look for the vertical grid line with the highest number. This is the north-south direction.
Using a Compass
If you have a compass, finding north on an OS map is easy. Simply place the compass on the map with the edge of the baseplate along the vertical grid line that represents north. Rotate the compass housing until the orienting lines on the baseplate are parallel with the vertical grid lines. The direction of travel arrow on the compass housing will now point to true north.
Question and Answer
Q: Why is it important to find north on an OS map?
A: Finding north on an OS map is important because it helps you orient yourself and navigate the terrain. Knowing which way is north will help you figure out which direction to go, and how much distance you need to cover.
Q: Is it necessary to use a compass to find north?
A: No, it's not necessary to use a compass to find north on an OS map. You can also use the grid lines to determine the north-south direction.
Conclusion
Reading an OS map is an essential skill for anyone who enjoys outdoor activities. Finding north on the map is a crucial first step in navigation. Whether you use the grid lines or a compass, make sure you're familiar with both methods to ensure a safe and enjoyable trip.
