Logan, Utah - 30x60 Minute USGS Topographic Map Pack Guide The fact that the Bird's

The fact that the Bird's Nest aquifer lies within the Uinta Basin's oil shale horizon raises questions as to how large-scale

Leatherwood and L

The Utah part of the national map was taken from the digital Quaternary tectonics map of Hecker

is the culmination of the study conducted in the Jordan Valley

mining and prospecting

Logan, Utah - 30x60 Minute USGS Topographic Map Pack Guide The fact that the Bird'sThe 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