USDA NRCS South Dakota|sourceurl=https://flickr.com/photos/68847506@N08/6675090785%7Carchive=https://web.archive.org/web/20200514200749/https://flickr.com/photos/68847506@N08/6675090785%7Creviewdate=2018-01-27 14:00:37|reviewlicense=cc-by-sa-2.0|reviewer=FlickreviewR 2
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