20250401 12112700 1.0 TRUE LiDAR Based 2' Contours The contours represented in this feature class are derived from data collected with a LiDAR sensor. The data presented in this layer represent information collected at different times, by several different vendors, using a variety of equipment and techniques. However, the user of this data can assume a minimum vertical accuracy of 18cm RMSE capable of producing 2 foot contours at the 95% confidence level. Horizontal accuracy for LiDAR data is difficult to measure but estimated at <1 meter. International Water Institute: Red River Basin Mapping Initiative; State of Minnesota LiDAR Mapping Project, USGS, NRCS, COE and Minnesota Counties.