The requirement is located in Article 31 (Shoreland Management Regulations), Section 11, Subd. 5., Paragraph A. of the Goodhue County Zoning Ordinance, which reads as follows:
A. General cultivation farming, grazing, nurseries, horticulture, truck farming, sod farming, and wild crop harvesting are permitted uses if steep slopes and shore and bluff impact zones are maintained in permanent vegetation or operated under an approved conservation plan (Resource Management Systems) consistent with the field office technical guides of the local soil and water conservation districts or the United States Soil Conservation Service. The shore impact zone for parcels with permitted agricultural land uses is equal to a line parallel to and fifty (50) feet from the ordinary high water level.
Minnesota Shoreland Buffer Initiative