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Aerial view of contoured, sloped farmland with farm buildings in the left hand corner and roads on the right
Aerial view of contoured farmland with road at the top in Plymouth County, Iowa
Aerial view of pond and roads on the farm of Virgil Rider
This aerial view of contoured land with trees in back belongs to D. Clifton in Plymouth County, Iowa
Aerial view of trees on farmland in curved shape in Plymouth County, iowa
Tiles for Conservation Project
The first photo shows rows of tiles in back of a dirt mound, The second shows tiles sitting on top of the dirt mound.
U.S. Department of Agriculture Soil Conservation Service display
This display shows two models of a 100 acre farm. The first one shows accelerated soil erosion as the result of unsatisfactory farming methods. The second model shows the same farm ten years later after the adoption of of a coordinated erosion…
Van Buren Soil Conservation Presents the "Conservation Carnival"
The location of the display is not known.
Plymouth County Soil Conservation District display covered up
The location of this display is not known.
Display of pine trees at a Plymouth County Soil Conservation District display
Pine trees include a White Pine, a Blue Hills Spruce, and a