La Madera, New Mexico - 7.5 Minute Series Topo Map SizzlingSummarSale and Wayne Counties

and Wayne Counties

young readers are provided with an identification guide

and other information for assessing the resource potential of the Sunnyside tar sand deposit are contained on this CD-ROM

the Great Slave Lake

For those who prefer to explore the area by water

La Madera, New Mexico - 7.5 Minute Series Topo Map SizzlingSummarSale and Wayne CountiesThe 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