Selway Falls, Idaho - 7.5 Minute Series Topo Map Geology Underfoot Series Pages: 160 p

Pages: 160 p

steeply dipping normal faults uplifted the mountain ranges and created fault-bounded sedimentary basins in their hanging walls

has some world-class examples of Utah's spectacular geology

No one had ever explored the fabled Grand Canyon

southwest Millard County and part of Beaver County

Selway Falls, Idaho - 7.5 Minute Series Topo Map Geology Underfoot Series Pages: 160 pThe 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