![]() ![]() ![]() Although this culture apparently had neither writing, nor architecture, nor agriculture, but only the crudest tools, they built the most complex complex of earthworks in North and South America. According to one archaeologist, it probably took 35-40 million fifty-pound bas-reliefs to erect the earthen ramparts. The length of all the ridges combined would be almost seven miles. These earthworks, though worn down by time, are approximately 75 feet wide at the base, 10 feet high, and 125 feet from crest to crest. The United States Army discovered earthworks on an airplane in 1952, when six long lines were discovered during a flight over the region, located one inside the other in the form of a huge semicircle. ![]()
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