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Suzi Holler
Suzi Holler • 2 years ago

Completely fascinating! "LiDAR imaging of prehistoric earthworks. LiDAR is the acronym for Light Detection and Ranging, a powerful technology that uses laser light for mapping and analysis. At the top is a LiDAR aerial image of the Marching Bear Group of earthworks at Effigy Mounds National Monument in Iowa." Click through for more photos, links, and information.

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