Port Orford, Oregon - 30x60 Minute Series Topo Map geology map historical sites

historical sites

The results of this study will be applied to ground-water modeling

There are some small one to three well gas fields located near Lisbon Field and a few scattered wells that have tested small amounts of oil and gas

indicating their significance and the unique landscapes they preserve

Port Orford, Oregon - 30x60 Minute Series Topo Map geology map historical sitesThe 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