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Lake Peipsi LandsatPeipsi.jpeg Lake Peipsi Landsat satellite photo circa Source NASA public domain Photo generated using ssc nasa gov LakePeipsiLandsat jpeg UTC LakePeipsiLandsat jpeg LakePeipsiLandsat jpeg PDUSGov original upload log This image is derivative work of the following images File LakePeipsiLandsat jpeg with PDUSGov