Chatham Geology (USGS)

Polygon data published by the U.S. Geologic Survey (USGS) to delineate and classify geologic resources, sediment types, and era of deposit. Data was clipped to the extent of Chatham County, GA. Dataset last edited 2007 Data is static and unchanging A primary goal of this work is to develop geologic map datasets with standardized structure and attribution. The database design and standards are documented in Chapter A of this series. The intent is that contiguous databases can be merged seamlessly and without any additional effort. In addition to a common database structure, the conterminous U.S. state databases (the contiguous 48 states) have been fitted to a set of standard state boundaries so that, when states are merged, they match without slivers or overlap. No attempt has been made to reconcile differences in mapping across state boundaries.