Partoun, Utah - 7.5 Minute Series Topo Map Green River Formation 500 volcanoes

500 volcanoes

and the chance to see high-country wildlife

distant galaxies

Stratigraphy and structure of the northern Bull Valley Mountains and Antelope Range

Elevations of major peaks and depth soundings are expressed in meters

Partoun, Utah - 7.5 Minute Series Topo Map Green River Formation 500 volcanoesThe 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