A pack goat is generally a wether (neutered male goat), but they can also be a doe (female goat) that is either dry (not in milk) or in milk. The breed of goat can be any variety of dairy goat, either purebred or crossbred.
A pack goat is a hiking partner that is experienced in the back country, in tune with its instincts, strong, hard working, intelligent, loyal, and disciplined.