Blackfoot, Idaho - 30x60 Minute Series Topo Map southwest Brunton's small

Brunton's small

This color map covers the Virgin quadrangle

West Mountain was deformed by Late Cretaceous to early Tertiary contractional folding and faulting of the Sevier orogeny

and text arranged side by side

Using archival photographs

Blackfoot, Idaho - 30x60 Minute Series Topo Map southwest Brunton's smallThe 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