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Topography, or the shape of the Earth's surface, is mapped and projected onto topographic maps. Height curves, or lines linking points of equal height, are drawn on topographic maps to quantify the height of any point in a map.

The ability to understand the shape of the ground from a map is a useful knowledge to learn, especially in mountain areas, whether to plan the project or a hike. In the map the height curve values are read upwards and show the direction of the slope. The highest number points upward and lowest down. In areas where the height curves are close to each other, it means that the topography is very steep. Where the curves are separated further apart, that means that the topography is leaner.

Contours are the most popular method of visualizing terrain shapes, as contours are topographically aesthetic and easy to combine with other map features. We produce aesthetically pleasing and timely curves in a variety of file formats and height ranges. Contours are mainly produced based on LiDAR (Airborne laser scanning) data, or a combination of data with existing vector or photogrammetry data.