Three Prong Mtn, Idaho - 7.5 Minute Series Topo Map SH-5D and Sand Hollow

and Sand Hollow

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and outcrop areas of major uranium-bearing strata

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Three Prong Mtn, Idaho - 7.5 Minute Series Topo Map SH-5D and Sand HollowThe 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