Mutts are the best kind!
Incidently, I ran across what must have been the same breed (except it might have been pure) out hiking one day with no one else around for miles. The dog was awesome, and let me tell you could it find squirrels in a heartbeat! It was a great, lively, friendly dog however I would say that they are prone to wandering... because I have no idea where this dog came from, or went to. After hanging around with me for a couple of hours it just took off.