This data represents LiDAR-derived breaklines in Door County, Wisconsin in 2018. 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.
U.S. Geological Survey (2018). LiDAR-Derived Breaklines for Door County, WI 2018. WisconsinView. https://www.sco.wisc.edu/data/elevationlidar/ (dataset)