Indeed. The travois (http://en.wikipedia.org/wiki/Travois http://en.wikipedia.org/wiki/Travois) was invented in the Americas and was widely used even after the

Indeed. The travois (http://en.wikipedia.org/wiki/Travois http://en.wikipedia.org/wiki/Travois) was invented in the Americas and was widely used even after the introduction of the wheel post-contact (in the fur trade for example) where no reliable roads existed.