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These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.


map background search result map search result map USGS Topo Map Vector Data (Vector) 11282 Dana, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 36309 Prairie Center, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71571 Shabbona Grove, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 71571 Shabbona Grove, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 47936 Wedron, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 72012 Wenona, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 4250 Blackstone, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 13314 Earlville, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23698 Kinsman, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 26483 Long Point, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28508 McNabb, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 31892 Newark, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 33615 Ottawa, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41023 Sheridan, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 41023 Sheridan, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43006 Stavanger, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40604 Serena, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42983 Starved Rock, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43584 Sublette, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS NED 1/3 arc-second Contours for Aurora E, Illinois 20180618 1 X 1 degree Shapefile USGS Topo Map Vector Data (Vector) 11282 Dana, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 36309 Prairie Center, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71571 Shabbona Grove, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 71571 Shabbona Grove, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 47936 Wedron, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 72012 Wenona, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 4250 Blackstone, Illinois 20180625 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 13314 Earlville, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23698 Kinsman, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 26483 Long Point, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28508 McNabb, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 31892 Newark, Illinois 20180625 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 33615 Ottawa, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41023 Sheridan, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 41023 Sheridan, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43006 Stavanger, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40604 Serena, Illinois 20180626 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42983 Starved Rock, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43584 Sublette, Illinois 20180626 for 7.5 x 7.5 minute FileGDB 10.1 USGS NED 1/3 arc-second Contours for Aurora E, Illinois 20180618 1 X 1 degree Shapefile