Ferguson Mtn, Nevada - 7.5 Minute Series Topo Map Quaternary Studies;100k Geologic Maps Birch Creek

Birch Creek

POTENTIAL IMPACTS TO PERENNIAL SPRINGS FROM TAR SAND MINING

each offering a unique perspective on the Uinta's grandeur

or bake quick and tasty dishes for breakfast

gallery-grade photography

Ferguson Mtn, Nevada - 7.5 Minute Series Topo Map Quaternary Studies;100k Geologic Maps Birch CreekThe distinctive characteristic of a topographic map is that the shape of the Earth's surface is shown by contour lines. Contours are imaginary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steepness of slopes. A topographic map shows more than contours. The map also includes