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- Archaeologists with drones discover pre-Columbian earthworks in Kansas https://arstechnica.com/science/2020/09/archaeologists-with-drones-discover-pre-columbian-earthworks-in-kansas/ 45 comments
- Archaeologists with drones discover pre-Columbian earthworks in Kansas https://arstechnica.com/science/2020/09/archaeologists-with-drones-discover-pre-columbian-earthworks-in-kansas/ 5 comments science
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