Selway Falls, Idaho - 7.5 Minute Series Topo Map Geology Underfoot Series No one had ever explored

No one had ever explored the fabled Grand Canyon

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

southwest Millard County and part of Beaver County

and 24 data folders

Selway Falls, Idaho - 7.5 Minute Series Topo Map Geology Underfoot Series No one had ever exploredThe 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