- Polk County Agricultural Extension Service - About programs in agriculture, family and consumer sciences, and 4-H clubs.
www.wingnet.net/~polkaes
- The Geologic Story of the Ocoee River - USGS brochure tells the geologic history of a popular stretch of the river in Polk County, including bedrock geology, copper mining in the Copper Basin, and river hydrology.
pubs.usgs.gov/gip/ocoee2
- TVA: The Global View - Article about reclamation of the environmentally devastated Copper Basin, the results of which could be seen from outer space.
www.tva.gov/heritage/globalview/index.htm
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