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Topographic Maps
Mapping The Earth Part 3
| Term | Definition |
|---|---|
| Topographic Maps (Contour Maps) | Commonly used model of the elevation field of the surface of the Earth (show three dimensional shapes in two dimensions) |
| Elevation | Height above or below sea level (Examples: mountains, hills, lakes, and rivers) |
| Natural Features | Features that created by nature (Examples: mountains, hills, lakes, and rivers) |
| Cultural Features | Features that are created by mankind (Examples: roads, cities, buildings, and dams) |
| Contour Lines | Lines drawn on a map that connect equal points of elevation |
| Contour Interval | The difference in elevation between two side by side contour lines |
| Index Contour | Lines that are bold and have an elevation labeled |
| Gentle Slope | When contour lines are spaced far apart |
| Steep Slope | When contour lines are spaced close together |
| Benchmark | A marker that has the exact latitude, longitude, and elevation |
| Depression Contours | Are marked with small lines called hachured lines that are pointed toward the center of a depression |
| Topographic Profile | The side view of a geologic feature |