Pupsitter Dens
The dens for the Pupsitters are up on the surface near the Lush Cave entrance and the Training Grounds. The Pupsitters take care of young pups that are weak. They will take care of them until they are strong enough to kind of take care of themselves.(Aka in Wolvden terms It's until the puppies are at a 100% survival chance without needing help of a Pupsitter.)