Cedar Ridge Mastiffs
In the city of Westminster, in Maryland, you will have the chance to find Cedar Ridge Mastiffs, a place where these dogs are always amazing and ready to change your life for ever.
http://dogstop.com/cedarridge/

Iron Hills Mastiffs and Argentine Dogo's
Iron Hills Mastiffs and Argentine Dogo’s is interested in the production and breeding of fine and superb specimens for both breeds. These dogs are perfect for both competitions and as lovely pets.
http://www.ironhillkennels.com/

Home of numerous champion and awarded dogs, Jai Bee Mastiffs counts with an experience of more than thirty years. Impressive and healthy puppies are available from time to time.
http://www.angelfire.com/md/JaiBeeMastiffs/index.html

Misty Meadow Mastiffs - AKC Champion Mastiffs and Mastiff pups
Started in the breeding business in the year of 1975, Misty Meadow Mastiffs features AKC champion dogs that are bred following the best bloodlines. They are all properly health checked in order to assure you the best results.
http://members.aol.com/Mmmmar56/index.html

Woodmark Mastiffs
In the city of Clements, Maryland, Woodmark Mastiffs specializes in the achievement of high quality dogs that are bred and raised in loving and protective environments.
http://www.populardog.com/woodmarkmastiffs/