Description: The Lot Line Layer is to assist the Assessors in value determinations of Real Property in Rock County, outside of the Cities of Beloit and Janesville. Lot Lines are defined by Certified Survey Maps, Subdivision Plats and Plats of Survey. This data was compiled pursuant to Section 70.09 of Wis. Stats. using public records. Tax Parcels may consist of more than one lot. This layer is created for taxation and assessment purposes, and should not be used to determine property lines. The existence of a Lot does not indicate suitability for building. Contact the Municipality the Lot is located to determine suitability for building. See the documents of record for actual recorded data. Area and Distance measurements displayed within this layer are for reference purposes only.