A new 2009 exposé has traced the shipping records for more than 15,000 puppies to Petland stores, proving once again that America's largest chain of puppy-selling pet stores, Petland Inc., is also the nation's largest retail supporter of puppy mills.

The investigation revealed that almost every Petland store in the country is buying puppies from large-scale "middleman" brokers that deal with puppy mills, and some are continuing to buy directly from known puppy mills that The HSUS filmed and identified in our 2008 investigation.

Some of them even purchased puppies from a known animal abuser in 2009.

Want to know where your local Petland is getting some of its puppies? View the stores on our interactive map below or click on your state in our state-by-state list below the map to see what our investigation found.