This is a favorite subject of mine. Let's discuss what they are. Topographic maps are also commonly called contour maps or topo maps. The United States Geological Survey (USGS) took over responsibility for mapping the country in 1879 and has been the primary civilian mapping agency of the United States ever since. The best known USGS maps are the 1:24,000-scale topographic maps, also known as 7.5-minute quadrangles. More than 55,000 7.5-minute maps were made to cover the 48 conterminous States. This is the only uniform map series that covers the entire area of the United States in considerable detail.
A topographic map is a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines. Contour line are lines on the map that connect all point with equal elevation above sea level. If you encounter a map where the contour lines are close together, that means that the relief is very steep. Traditional definitions require a topographic map to show both natural and man-made features.
Uses - Topographic maps have multiple uses in the present day: any type of geographic planning or large-scale architecture; earth sciences and many other geographic disciplines; mining and other earth-based endeavours (such as planning and constructing ponds); and recreational uses such as hiking or, in particular, orienteering, which uses highly detailed maps in its standard requirements. Topo maps can be used determine % slope, potential pond site and other uses. A topo map can be used to determine the watershed area for a pond or potential pond. If you are dealing with LAND, your Realtor should provide you with a topographic map!
For Information on Buying or Selling Land contact G. Kent Morris, ALC, RF at (706) 457-0090
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