Holman, New Mexico - 7.5 Minute Series Topo Map SH-ES2-B and quarry

and quarry

Hedberg Conference on Reservoir-scale deformation - characterization and prediction held June 22-28

Clay Basin gas field

you'll soon learn to locate and recognize each unique specimen - from Sego Lily to Subalpine Monkeyflower

the surface effects of weather and water

Holman, New Mexico - 7.5 Minute Series Topo Map SH-ES2-B and quarryThe 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