A topographic map is a multidimensional geographical representation of a region. The term topography means an arrangement of the natural and artificial physical elements of a geographic area. In many ways, it can be considered a detailed description or representation on a map, which contains both artificial and natural features. The simplest definition for topography means the distribution of parts or features on the surface of or within the organism or organic area.
Mystery of topographic maps
Similar to an other map, symbols are used on a Garmin Topographic map to indicate elevated or non-elevated regions, objects etc. All map symbols are color-coded. Symbols in green indicate vegetation, symbols in blue represent water, brown color is used for topographic symbols to represent land and for man-made features colors like black and red are used. Some common map symbols are listed below.
- Contour lines are representative of elevation. Contour lines are generally in brown color show topography on the map. Some are regular thin brown lines, while others are relatively thicker. Numbers written in brown alongside contour lines indicate elevation.
- Forests and vegetation are represented with a clean sweep of green colored areas on the map.
- Streams and other water bodies are given a natural color of blue
- Roads and trails or other man-made features on the topographic map are shown in red or black. Roads are indicated with a double line or thick red lines. A range of codes is used to indicate road quality.
- Buildings are shown in black in shape of solid squares, indicating buildings are occupied by in habitants. One the other hand, a hollow square in black is usually indicative of uninhabited buildings.
Features are essential to understand while looking for the best topographic map supplier. You will be in advantage if you choose a supplier who also provides Garmin GPS systems and GPS cables from Garmin.