TVA: The Global View
- Article about reclamation of the environmentally devastated Copper Basin, the results of which could be seen from outer space.
- http://www.tva.gov/heritage/globalview/index.htm

Polk County Agricultural Extension Service
- About programs in agriculture, family and consumer sciences, and 4-H clubs.
- http://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.
- http://pubs.usgs.gov/gip/ocoee2/