Jakes Knoll, Utah - 7.5 Minute Series Topo Map GHOST STORIES These aerial photographs will be

These aerial photographs will be useful for professionals in­volved with geologic

classic examples of inverted valleys capped by older lava flows

correlation of surficial map units

“Roadside History of Montana” by Don Spritzer goes well beyond cowboy stories to tell of the struggles of dryland farmers

Jakes Knoll, Utah - 7.5 Minute Series Topo Map GHOST STORIES These aerial photographs will beThe 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