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Gary, there are some mounds in northeast Iowa called effigy mounds. One of their mound sites is called fire point. At the end of this mound group are three mounds that are bigger than the rest. It is at a perfect vantage point of the convergence of the Wisconsin and Mississippi rivers. They also face the southern sky. I believe they are called mound 33. The mounds themselves aren't that spectacular, but I thought the enlargement of the three, being called fire point, and the number 33 were interesting coincidences.