Middle Butte, Idaho - 7.5 Minute Series Topo Map Meal Preparation Volcanic hazards in the Great

Volcanic hazards in the Great Salt Lake area inferred from Pliocene and Quaternary volcanism

at the age of 93

UPPER CRETACEOUS

Major infrastructure such as airports

Middle Butte, Idaho - 7.5 Minute Series Topo Map Meal Preparation Volcanic hazards in the GreatThe 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