Mount Wilson, Colorado - 7.5 Minute Series Topo Map SH-17B • TruArc™ Global Needle tilts

• TruArc™ Global Needle tilts up to 20˚ for balanced use worldwide

Geologic issues involved in siting a high-level nuclear waste repository

Sooes Peak

and intersects the northeast-striking Antelope Range fault

Mount Wilson, Colorado - 7.5 Minute Series Topo Map SH-17B • TruArc™ Global Needle tiltsThe 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