What color represents contour lines or elevation on a military map?

Brown is the color used to represent contour lines or elevation on military maps, specifically on topographic maps. These brown lines indicate changes in elevation and are essential for understanding the terrain. By illustrating the height and shape of the land, contour lines help individuals visualize the topography of the area, which is crucial for navigation, planning military maneuvers, and understanding visibility and cover in the field.

Using brown for elevation also allows for a clear distinction from other features on the map, such as green areas representing vegetation or black lines indicating roads and structures. This clarity is important for military operations where accurate terrain comprehension can influence decision-making and strategic planning.