Mountain Dell, Utah - 7.5 Minute Series Topo Map 24k Wyoming Topo One of 2 airplane engines

One of 2 airplane engines resting at the eastern base of Bomber Peak

Kuehne and Hellmut H

The Operation

Both the front and back of this map illustrate the enormous recent growth in our knowledge of planet Earth

famous for its rugged beauty

Mountain Dell, Utah - 7.5 Minute Series Topo Map 24k Wyoming Topo One of 2 airplane enginesThe 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