Mesa Butte, Utah - 7.5 Minute Series Topo Map Butterflies Burning Hills

Burning Hills

These three photographers have devoted incredible amounts of time to capture some of the most breathtaking images of raptors imaginable

Geophysical analyses to map concealed faulting in the Wasatch fault zone in northeastern Provo

Search for stunning Montana agate along the Yellowstone River

contains an enormous landslide complex

Mesa Butte, Utah - 7.5 Minute Series Topo Map Butterflies Burning HillsThe 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