The document is about contours on orienteering maps. It defines contours as brown lines that indicate changes in elevation, with closer lines indicating steeper slopes. It describes key landforms like reentrants, which are valleys running down hills; spurs, which are extensions of hills; and saddles, which are low areas between two high points. It provides examples of contour maps and images of terrain, asking the reader to identify features, and explains how contours can help with navigation.