USDA’s Know Your Farmer Know Your Food Program

http://www.usda.gov/wps/portal/usda/usdahome?navid=KNOWYOURFARMER

USDA Census of Agriculture

https://feedourfuture.org/usda-census-of-agriculture/

Food and Water Watch’s Factory Farm Map

https://web.archive.org/web/20191006082747/https://www.factoryfarmmap.org/