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Collection: Plymouth County Soil and Water Conservation District Historical Collection
Browse Items (469 total) for Plymouth County Soil and Water Conservation District Historical Collection
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Aerial view of farmland showing patches of contoured terraces in different colors
Terraced farmland with pond and stream to the left in the middle
Terraced Farmland with pond in the middle
Aerial view of farmland with trees and farm buildings
Color photo of terraced farmland with a road running through it.
Aerial view of Contoured terraces on farmland in Plymouth County, Iowa
Hole in ground caused by erosion on grassless soil near building
Erosion in a field
Soil erosion in a field
Unidentified erosion on an embankment in Plymouth County, Iowa
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