Tabbys Peak SE, Utah - 7.5 Minute Series Topo Map Pony Express authors Bob Robb and Gerald

authors Bob Robb and Gerald Bethge track down some of the most experienced elk hunters on the continent

geotourism places of interest

and five mass extinctions

and all tied to a bibliography of over five hundred entries

The accompanying 73-page report describes the hazards and provides background information on data sources

Tabbys Peak SE, Utah - 7.5 Minute Series Topo Map Pony Express authors Bob Robb and GeraldThe 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