Shoreland

Le Sueur County Ordinance Shoreland Definitions https://www.co.le-sueur.mn.us/DocumentCenter/View/285/Shoreland-Definitions-PDF

Ordinary High Water Level (OHWL) is defined in section 4 of the Le Sueur County Ordinance as the boundary of public waters and wetlands, that is an elevation delineating the highest water level which has been maintained for a sufficient period of time to leave evidence upon the landscape, commonly that point where the natural vegetation changes from predominantely aquatic to predominately terrestrial. 

 MN DNR Shoreland History https://www.dnr.state.mn.us/waters/watermgmt_section/shoreland/history.html