Thistle, Utah - 7.5 Minute Series Topo Map Birding Contains geographic information system (GIS)

Contains geographic information system (GIS) files in ESRI file format

Wilson with contributions by T

expanded information

The Oquirrh Fault Zone

Thistle, Utah - 7.5 Minute Series Topo Map Birding Contains geographic information system (GIS)The 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