This data represents LiDAR-derived breaklines in Dane County, Wisconsin in 2017. Hydro breaklines maintain the definition of water-related features in an elevation model. They are used to capture linear discontinuities in the surface, lake shorelines, single-line drains for small rivers, and double-line drains for large rivers.
This data is also available as a series of tiles to enable downloads of smaller, more specific areas within the county. To access the tiled data, please visit: https://www.sco.wisc.edu/scoapps/lidar/tile-search/?layer=dane