Which feature on a map indicates the height of land above sea level?

The feature on a map that indicates the height of land above sea level is the contour line. Contour lines are lines drawn on a map that connect points of equal elevation. This means that any point along a given contour line is at the same height above sea level. Contour lines help to visualize the terrain and identify the steepness and elevation of hills, valleys, and mountains. By studying the spacing of contour lines, one can determine slopes—closely spaced lines indicate a steep slope, while widely spaced lines suggest a gentle slope.

The scale provides a ratio or proportion that indicates how distance on the map relates to real-world distances. The projection refers to the method used to represent the three-dimensional surface of the Earth on a two-dimensional map, which can affect the accuracy of area, shape, distance, or direction. The legend explains the symbols and colors used on the map, helping users interpret the various features depicted.