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Digital true-color photographs of bluffs and ground control points from unoccupied aerial system operations in Ludington, MI, July 11, 2019, and July 14, 2021 Images were collected using a remotely piloted unoccupied aerial system (UAS) over the bluffs of the eastern shore of Lake Michigan in Ludington, MI, a rural natural area to assess land changes. The digital imagery was collected with the internal camera of a DJI Phantom 3 PRO for 2019 data and DJI Phantom 4 PRO for 2021 data that was operated by the University of Toledo. The images cover an extent between north of Chauvez Rd. to the south and north of W. Bradshaw Rd. to the north. Images were collected to monitor active bluff erosion in the area. The images are presented here in zipped files grouped by type of collection, nadir and oblique and survey date. The images were collected in .jpg format with red, green,... Categories: Data; Tags: Aeropoints, DJI Phantom, GMEG, Geology, Minerals, Energy and Geophysics Science Center, Lake Michigan, All tags... Ludington, MGS, Mason County, Michigan Geological Survey, State of Michigan, U.S. Geological Survey, UAS, USGS, UT, University of Toledo, erosion, geospatial datasets, health, image collections, remote sensing, structure from motion, Fewer tags