What does the color red typically indicate on older maps?

On older maps, the color red is commonly used to indicate cultural features. This includes human-made structures such as roads, cities, boundaries, and other significant infrastructure. The use of red helps these features stand out clearly against the natural landscape that is typically presented in more subdued colors. This practice aids in navigation and provides essential context for understanding how humans have interacted with and altered the environment.

Cultural features represented in red can include landmarks, borders, and areas of development, making it easier for users to assess human impact on the landscape quickly. This method of color coding has historical significance and contributes to effective map reading practices.