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The vast expanses of Wyoming's seemingly empty landscapes belie the turbulent events and colorful characters that make up the state's rich past

Lamp Stand, Utah - 7.5 Minute Series Topo Map 62502 and 50k Geologic Maps Roadside Geology of Colorado isThe 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