Joe explains how to relate contour lines to actual physical geographical features like valleys and hills. Contour lines can be used for navigational purposes, which Joe demonstrates using a ...

Sketch maps, satellite images, photos, GIS maps and geology maps are all useful, too. This video is about contour lines which are added to a map to show height and gradient.

Keywords maps, symbols, contour lines, scale, orientation, geographical features, navigation, legends, elevation, water depth, climate Fort Knox Has $400 Billion in Gold. Trump and Musk Want to ...