A dog approached us about a mile in traveling CW on Brown Wave. Do not think it was a pit bull but about that size, general look and muscularity. Mostly black with some white markings. Had a very thick leather collar on (probably nearly two inches) and a plate on the top however the dog would not get close enough for me to reach the plate and he moved off pretty quickly. He looked lost but was in very good shape and appeared not to have missed too many meals yet.