Pollywog Lake, Utah - 7.5 Minute Series Topo Map SH-17D by Gregory B

by Gregory B

More than one hundred of author Frank DeCourten’s meticulous line drawings illustrate fossil remains and various features of dinosaur anatomy

live in Taylorsville

This color map covers the Dry Fork quadrangle

the corporate sponsorship of Osprey Packs

Pollywog Lake, Utah - 7.5 Minute Series Topo Map SH-17D by Gregory BThe 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