What type of landform is most visible on a topographic map?

The most visible landforms on a topographic map are hills and mountains, which are represented by contour lines that indicate elevation changes. These lines are closely spaced in steep areas and more widely spaced in flatter regions. Valleys and depressions are also depicted, often with contour lines forming closed loops. Additionally, features like rivers and lakes may be shown, but the contour lines primarily highlight the terrain's elevation and slope.