Saddle. A saddle is a low lying area between two higher points of elevation. Learning to identify common contour line formations will help you read topo maps quickly, and recognize the various terrain features they represent on a map. Contour lines, as we know them today, came into popular use in the mid-1800s along with the rise of resource extraction industries like mining and logging.Īfter reading contour lines on a map for a while, you’ll notice that a few distinct shapes pop again and again. It would be thousands of years before cartographers (map makers) could chart large areas of terrain with any real accuracy. The first known maps to include geographical features were found in Ancient Rome. Essentially, topographic maps represent the three-dimensional landscape of Earth within the two-dimensional space of a map. Topographic maps use a combination of colors, shading and contour lines to represent changes in elevation and terrain shape. A map with contour lines on it is called a topographic map. Topography is the study of geographical features on a landscape. Beyond backpacking and hiking, countless other professions use them - land surveyors, foresters, engineers, miners, geologists, hunters, to name a few. or lifesaving in a desperate survival situation. This information can be helpful when selecting a hiking route. If you trace the length of a line with your finger, each point you touch is the same height above sea level. If you were to walk the path of a contour line in real life, you would remain at the same elevation the whole hike, never traveling up or down.Ĭontour lines are critical to understanding the elevation profile of your terrain or a particular land formation. Put simply, contour lines mark points of equal elevation on a map.
What are Contour Lines and Topographic Maps? Contour LinesĮver noticed those squiggly lines all over your hiking map? Other than the obvious trails and rivers, these squiggly lines are contour lines. What are Contour Lines and Topographic Maps?.
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