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Contour plowing of fields in Pennsylvania, 1982.
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Aerial image of contoured plowed fields.

Credit: ┬ęTom Weigand, Inc., www.thewinningimage.com

In the aftermath of the Dust Bowl, the new federal Soil Conservation Service promoted contour plowing across the country to reduce erosion and the loss of irreplaceable topsoil on farms across the nation.

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