General science biology published this article page no 36 it is amazing to think that the incas made a road system that covered approximately 14000 miles some of which traversed the andes mountains achieving heights of over 16500 feet above sea level. when you consider that evidence shows that the incas did not use of the wheel for transportation and that they did not have horses until the 16th century it is incredible that the trails were used just to walk (for transporting goods) or run along (as a means of relaying messages). in order to offer rest and refreshments there were an estimated 2000 inns placed at convienient intervals along the trails. these inns also offered corrals for animals usually llamas to rest and fill themselves with the provisions for their onward journey. the incas made rope bridges to enable themselves access acroo the valleys. food shelter and military supplies to the tens of thousands who traveled the roads. in cuzco the inca capital city the trails meet in the center of the empire general science biology syllabus.
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