Beatty, Nevada - 30x60 Minute USGS Topographic Map SH-4D Willard Marriott Library

Willard Marriott Library

Cycling has increased in popularity in recent years in Utah

Geophysical and geochemical data to map ground-water contamination -- Utah County

Contained within the last 541 million years are the Cambrian explosion

Beatty, Nevada - 30x60 Minute USGS Topographic Map SH-4D Willard Marriott LibraryThe 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