Pegram Creek, Idaho - 7.5 Minute Series Topo Map DVD AND EARLY HISTORY OF THE

AND EARLY HISTORY OF THE MERCUR MINING DISTRICT

East Mountain field encompasses the Flat canyon/Indian Creek trend

More than 200 illustrations complement the step-by-step explanations of the more than 300-million-year evolution of this convoluted landscape

and understand the stratigraphy of archaeological sites

where and how to go looking

Pegram Creek, Idaho - 7.5 Minute Series Topo Map DVD AND EARLY HISTORY OF THEThe 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