Chandler Falls, Utah - 7.5 Minute Series Topo Map Display Case this new title--one of an

this new title--one of an expanding collection of National Geographic pocket guides--offers key facts about dozens of rocks and minerals

There is a continuing need for collectors and professionals to work together with resource managers and legislators to develop workable laws and rules affecting the collecting of minerals and fossils

Includes "fast facts" and "did you know" questions and insights

This project has recognized five kerogen-rich shale units as having reasonable potential for commercial development as shale gas reservoirs

identification of danger areas and obstacles

Chandler Falls, Utah - 7.5 Minute Series Topo Map Display Case this new title--one of anThe 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, suc