Description: The Bare Earth DTM was developed from LAS points and breaklines collected from a LiDAR flight flown in the Fall of 2011, as part of the Fond Du Lac County 2011 WROC project. The DTM is used to develop a TIN (Triangulated Irregular Network). All map products will meet ASPRS Class II accuracy standards. The horizontal and vertical coordinates shall be referenced to the County coordinate system (NAD83 in Feet) and NAVD88.