Aspen is a 1.5 year old mixed breed dog. We were told he was a Boxer Mastiff at adoption but we believe that is incorrect. Aspen is currently in tact but is scheduled for a neuter early August. He is pretty dominant (hoping neuter will help that) and very hyper. He needs room to run and a family that is well versed in training big dogs. Hes stubborn but will do anything for a treat. He is okay with kids but doesn't understand how big he is. I have a 2 year old at home and he loves her & knocks her down a lot, but is very gentle otherwise. He has turned out to be too much for our family to handle at this time. With both parents now working, we dont have a lot of time to devote to him. We are looking for a loving home for our pup and will only consider serious families who have owned big dogs before.