Marshall Peak, Idaho - 7.5 Minute Series Topo Map General Interest Books Granite Peak and Sapphire Mountain

Granite Peak and Sapphire Mountain are range blocks composed of igneous and metamorphic rocks located on the southeast margin of the Great Salt Lake Desert in the northeastern Great Basin

Part of Dinosaur National Monument is in the northeast corner of the quadrangle on the Split and Blue Mountains sector of the Yampa Plateau

this trail crosses today's Dixie National Forest

you’ll experience the excitement of finding

They are less detailed than 1:24

Marshall Peak, Idaho - 7.5 Minute Series Topo Map General Interest Books Granite Peak and Sapphire MountainThe 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