North Americans just don’t usually think of their indigenous peoples as having sophisticated, regional societies, public works or long distance trade. Perhaps the Hollywood portrayals of Plains Indians has created too much of a stereotype. Mexicans and Central Americans, of course, take pride in their pre-European heritages. They are not surprised when they hear that the Mayas built some canals or that the Purepeche interlaced Michoacan with roads.
Archaeologists currently believe that the indigenous peoples of Florida did not have beasts of burden. Several types of dogs were kept for hunting, companionship or meat, but no evidence of them pulling loads has been found to date. There were no horses or oxen in Florida from the end of the Ice Age until the arrival of Spanish colonists in the late 1500s. As yet, no evidence has been found that manatees or dolphins pulled canoes. That left two options for transportation of bulk goods, canoes or human porters.