How is the width of a valley represented on a contour map?

On a contour map, the width of a valley is represented by the spacing between contour lines. When the contour lines are closer together, it indicates a steep slope, while wider spacing suggests a gentler slope or flatter terrain. In a valley, the contour lines typically form a V-shape pointing upstream, with the width of the valley being inferred from the distance between these lines. The overall shape and spacing help to visualize the valley's width and depth.