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Water Conservation; Water Erosion; Flooding and Prevention
Photograph of a valve and entrance pipe installed in a dam built as an irrigation reservoir under the Great Plains Conservation Program. OK-1712-3.
Date:
March 16, 1962
Creator:
Nelson, Paul L.
System:
The Gateway to Oklahoma History
Water Conservation; Water Erosion; Flooding and Prevention
Photograph of a drawdown pipe and drain valve in an irrigation resevoir constructed under the Great Plains Conservation Program. OK-1712-2.
Date:
March 16, 1962
Creator:
Nelson, Paul L.
System:
The Gateway to Oklahoma History
Contour Listing Between Terraces for Row Crop Planting
Photograph of a "View of contour listing between terraces for row crop planting."
Date:
March 1936
Creator:
Slack
System:
The Gateway to Oklahoma History