1. Rocks and Landforms I-2 Notes

2. Topographic Maps
Topography is the shape of the physical features of the land surface.
The best way of showing the shape of the land in an area is by using a topographic map

4. Topographic maps show you the elevations and features of hills and valleys.
Hills and valleys are marked with a series of curves called contour lines.
A contour line connects all the points on the land surface that are at the same elevation.

5. The difference between each contour line is called the contour interval
The contour interval used on a topographic map depends upon the region’s relief.
A region’s relief is the difference between the lowest and highest points.

6. Color and symbols on topographic maps are used to show natural and human-made features such as rivers, mountains, orchards, forests, roads, schools, and industries.

8. Blue
Used to show water

9. Green
Vegetated Areas

10. Black Squares
Buildings

12. Each topographic map shows latitudes and longitudes across the region by marks along the edges of the maps

13. Key or Legend Map scale Meaning of the symbols on the map
Date the map was made