Contour lines are lines drawn on a map that connect points of equal elevation. They help us visualize the shape and steepness of the land. For example, if you see contour lines that are close together, it indicates a steep slope, while lines that are spaced farther apart suggest a gentle incline. These lines are essential for activities like hiking and land surveying. They allow people to understand the terrain without needing to physically explore it. By studying contour lines, you can plan your route and anticipate challenges, making them a valuable tool for outdoor enthusiasts and professionals alike.