Swiss farmers called this breed the poor man's horse, because one Greater Swiss Mountain Dog could pull a milk cart, drive cattle to market and guard the farmyard. The largest of the four Swiss mountain breeds nearly disappeared when machines replaced draft dogs, then was revived in the early 1900s. Swissies are heavy-boned, often weigh well over 100 pounds, and wear a dense black coat with rust and white markings.
Many are confident, faithful and gentle with their families, and alert enough to bark at a stranger on the porch, which matters on St. Louis blocks where homes sit close together. They mature slowly, can be strong-willed and pull hard on a leash. Their size brings bloat risk, steep costs and a lifespan of roughly eight to eleven years.