2017 Countywide Contours
<div><b><a href='https://maps.lakecountyil.gov/gisdata/Contours2017.zip' target='_blank' rel='nofollow ugc noopener noreferrer'>Download In State Plane Projection Here</a></b><br /></div><div><br /></div><a href='https://clearinghouse.isgs.illinois.edu/node/1654' target='_blank' rel='nofollow ugc noopener …