This map shows the relationship of city streets or highways to each other, but does not show elevation or other geologic information. Elevation is represented by contour lines, and symbols and colors represent man-made or geographic features. The scale of a map is the amount of distance represented by a measurement on the map and how it relates to distance on the ground. As the scale of a map increases, the amount of detail shown is less. Precisely walking a contour line would mean that you never change elevation.
Maps use colors to represent different features.
A system of 24 satellites that provide information to a GPS receiver. With four or more satellites, a GPS receiver can calculate the location and the elevation. Ecological 4-Wheeling Adventures 2234 Catherine Pl.