This data represents LiDAR-derived terrain for Rock County, Wisconsin in 2011. Derived terrain is a vector dataset composed of regularly spaced points and natural features such as ridges and breaklines. It augments a DEM by including linear features of the bare-earth terrain., For detailed metadata please visit: https://web.s3.wisc.edu/wsco-wisconsinview/lidar/Rock/WI_Rock_new/Metadata/Metadata.zip