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Observations and subtle shifts of vegetation communities in western Lake Erie have USGS researchers concerned about the potential for Grass Carp to alter these vegetation communities. Broad-scale surveys of vegetation using remote sensing and GIS mapping, coupled with on-the-ground samples in key locations will permit assessment of the effect Grass Carp may have already had on aquatic vegetation communities and establish baseline conditions for assessing future effects. Existing aerial imagery was used with object-based image analysis to detect and map aquatic vegetation in the western basin of Lake Erie.
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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.
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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) 18820 Gypsum, Ohio 20200224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 18820 Gypsum, Ohio 20200224 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25811 Lindsey, Ohio 20200226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32650 Nunica, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36679 Put-in-Bay, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46867 Vickery, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 Lake Erie, Western Basin Aquatic Vegetation data USGS Topo Map Vector Data (Vector) 4882 Borculo, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17969 Grand Haven, Michigan 20200708 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 20723 Holland East, Michigan 20200708 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 27424 Manchester NW, Kansas 20190327 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 71810 Tescott NE, Kansas 20190327 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29553 Minneapolis North, Kansas 20190328 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29469 Miltonvale, Kansas 20190327 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 31671 New Cambria, Kansas 20190328 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42032 Solomon, Kansas 20190328 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49945 Wyandotte, Oklahoma 20190705 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36870 Racine, Missouri 20210623 for 7.5 x 7.5 minute FileGDB 10.1 USGS NED 1/3 arc-second Contours for Grand Rapids W, Michigan 20200306 1 X 1 degree Shapefile USGS NED 1/3 arc-second Contours for Milwaukee E, Michigan 20200306 1 X 1 degree FileGDB 10.1 USGS Topo Map Vector Data (Vector) 18820 Gypsum, Ohio 20200224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 18820 Gypsum, Ohio 20200224 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25811 Lindsey, Ohio 20200226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32650 Nunica, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36679 Put-in-Bay, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46867 Vickery, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 4882 Borculo, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17969 Grand Haven, Michigan 20200708 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 20723 Holland East, Michigan 20200708 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 27424 Manchester NW, Kansas 20190327 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 71810 Tescott NE, Kansas 20190327 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29553 Minneapolis North, Kansas 20190328 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29469 Miltonvale, Kansas 20190327 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 31671 New Cambria, Kansas 20190328 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42032 Solomon, Kansas 20190328 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49945 Wyandotte, Oklahoma 20190705 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36870 Racine, Missouri 20210623 for 7.5 x 7.5 minute FileGDB 10.1 Lake Erie, Western Basin Aquatic Vegetation data USGS NED 1/3 arc-second Contours for Grand Rapids W, Michigan 20200306 1 X 1 degree Shapefile USGS NED 1/3 arc-second Contours for Milwaukee E, Michigan 20200306 1 X 1 degree FileGDB 10.1