NC Geological Survey Logo 1:62,500-scale Geologic maps in North Carolina NC Geological Survey Logo
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   These maps cover an area of about 4 times that of the 7.5-minute series maps, and are scaled to about 1 inch on the map equals about 1 mile on the ground. These are also referred to as the 15-minute map series, owing their name to the U.S. Geological Survey 15-minute topographic base map. What you gain in area, you lose in detail. These maps are also excellent for determining geologic trends and relationships over a broader area than the traditional 7.5-minute series maps.   

Click on a map outline below to zoom in




North Carolina Geological Survey . 1612 Mail Service Center . Raleigh, NC 27699-1612 . 919-733-2423