Allan Mountain, Idaho - 7.5 Minute Series Topo Map Exploring Southern Utah 1 This volume includes a family

This volume includes a family tree and a new introduction by John J

new measured stratigraphic sections of the principal aquifer

which erupted to produce an ash-flow tuff now partly buried by the gravity slide

with this volume only dealing with the northeastern and eastern Utah

and core and outcrop photographs

Allan Mountain, Idaho - 7.5 Minute Series Topo Map Exploring Southern Utah 1 This volume includes a familyThe 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