The thin brown lines snaking around a topographic map are contour lines. All points along the same contour line are at the same elevation above sea level. Think of a contour line as a closed loop ...

Orienteering differs in that a topo map has contour lines in place of the galaxy imprinted on Sparrow’s compass, and the needle on a compass points to the magnetic pole of Earth. These tools can ...

First introduced with watchOS 10, topographic maps include trails, contour lines, elevation, and points of interest, features that are of use for hiking and other outdoor activities where accurate ...

Contour planting involves tilling, discing, and otherwise preparing the land in line with its natural slope, then planting crops on this same line. When you look at a topographic map, the rows and/or ...

The concept3D team has built a nice collection of SketchUp video tutorials, including this one that shows you how to quickly create a 3D topographic map from any location in Google Earth ...

(Photo: Stramyk via Getty Images) The thin brown lines snaking around a topographic map are contour lines. All points along the same contour line are at the same elevation above sea level.