Cattle Canyon, Arizona - 7.5 Minute Series Topo Map Europe Contents include marine geological surveys

Contents include marine geological surveys

The purpose of mapping undertaken in this project was to map the Sego Sandstone and the coal zones in the overlying Neslen Formation

These two Triassic formations form Little Creek Mountain along the east edge of the quadrangle

Great Basin

Cattle Canyon, Arizona - 7.5 Minute Series Topo Map Europe Contents include marine geological surveysThe 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