Boulder is a big boy, about 75 pounds. He was found hiding under an old shed, hairless and starved. He is now a big beautiful sweet funny boy. An active outdoorsy family with some kids, probably older kids, would be best because Boulder is a big strong boy and he does not realize how strong he is! He is fully vetted, heartworm negative, about 18-24 months old. He is fine with most other dogs, especially bigger dogs.