This is Denver! He is one of Winnie and Cesar’s puppies (born March 3, 2013). He is doing well in his new home. His owners wrote:

Just a short note and a few pictures I thought you would like to see. We named our puppy Denver and he is doing very well. He has a lot of energy, He is fully trained and rarely makes any mistakes in the house. His weight is forty pounds and he loves food. He can sit, stay, come very well. We are working on fetching. He loves water and gets a lot of that at the family cabin. He plays well with other dogs and loves people. Thanks again for an amazing dog he has been a great addition to our family. I will recommend you to anyone I know that wants a beautiful animal!