Glossary

Scale

The ratio between a distance on the map and the corresponding distance on the ground (for example, 1:24,000). A larger scale shows more detail over a smaller area.

Legend (Key)

The panel that explains what the map’s symbols, colors, and line styles represent.

Contour Lines

Lines that connect points of equal elevation. Closely spaced contours indicate steep terrain; widely spaced contours indicate gentle slopes.

Topographic Map

A detailed map that represents the shape and elevation of the land surface using contour lines and relief.

Latitude & Longitude

The grid of coordinates used to describe any location on Earth. Latitude runs east–west; longitude runs north–south.

Compass Rose

The figure on a map that shows orientation and the cardinal directions (north, south, east, and west).

Relief

The representation of the shape and height differences of terrain, often shown with shading, contours, or color.

Cardinal Directions

The four main points of the compass: north, south, east, and west.

As Seen On TV

How do you like the new site? If you would like to provide feedback, please click here.