Ask AI: How are contour lines spaced in areas of flat terrain?

In areas of flat terrain, contour lines are typically spaced far apart. This wide spacing indicates that there is little change in elevation over a given horizontal distance. The further apart the contour lines are, the more gradual the slope of the land. Conversely, in areas with steep terrain, contour lines are closely spaced to reflect the significant changes in elevation over shorter distances. So, if you see widely spaced contour lines on a topographic map, you can interpret that the terrain in that area is relatively flat.