What is a contour interval?

A contour interval is defined as the vertical distance between adjacent contour lines on a map. This measurement allows readers of the map to understand the elevation change between these lines. When contour lines are close together, it indicates a steep slope, while lines that are spaced further apart represent a gradual slope. Understanding the contour interval is crucial for activities such as hiking, surveying, or military maneuvers, as it provides essential information about the topography of the terrain being navigated. By being aware of the contour interval, individuals can make informed decisions about how to approach the landscape they are dealing with, ensuring safety and effectiveness in navigation and planning.