Sterling, Colorado - 30x60 Minute Series Topo Map SH-4D Adjoining lakes and rivers

Adjoining lakes and rivers

Available files include: Fischer assays made from drill cores and cuttings

such as amber

in the transition zone between the Colorado Plateau and Basin and Range physiographic provinces

Sterling, Colorado - 30x60 Minute Series Topo Map SH-4D Adjoining lakes and riversThe 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