Grand Jean, Idaho - 7.5 Minute Series Topo Map Children's Books and Activities Authors Allen Glazner and Art

Authors Allen Glazner and Art Sylvester build on coauthor Bob Sharp’s insights to produce this full-color illustrated guide to 33 amazing geologic sites in Death Valley and the surrounding region

sweet and savory snacks

This map highlights the dramatic elevations and natural beauty

The fun begins in the backcountry

Grand Jean, Idaho - 7.5 Minute Series Topo Map Children's Books and Activities Authors Allen Glazner and ArtThe 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