St George, Utah - 7.5 Minute Series Topo Map Debris Flows Swans Island

Swans Island

and accessibility tips—whether you’ll need a sturdy vehicle or just your hiking boots

famous for silver

You'll also find important advice about hiking with dogs and preparation before you hit the trail

This Utah Geological Survey Special Study

St George, Utah - 7.5 Minute Series Topo Map Debris Flows Swans IslandThe 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