Mason is the largest puppy in the pack at the moment and is almost twice the size of some of the smaller pups.  He’s a confident pup with a strong personality and he likes to be around both people and dogs.  He’s curious and interested, and loves to experience new things.  Tyson is a very energetic pup and is going to be happiest with an active family who will include him in everything and make sure he has lots of exercise.  Mason is a tan and white boy, with gorgeous green eyes. If you would like to meet Mason. Please fill out an adoption application on our web site. http://www.azmastiffrescue.com