What color is used for contour lines and elevation markers on military maps?

The color used for contour lines and elevation markers on military maps is brown. This specific color is designated to help convey elevation and the relief of the terrain clearly. Using brown for contour lines allows for better visibility and differentiation from other map features, which is crucial for navigation and understanding the terrain's topography. This color standardization is important in military operations, as it ensures all personnel can read and interpret maps accurately and consistently, leading to better tactical decision-making and situational awareness during operations. Other colors on the map serve different purposes: blue typically indicates water features, black often represents man-made structures, and red is used for major roads and boundaries, underscoring the importance of color coding in military navigation.