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Layers of geospatial data include geographic names, hydrography, and other selected map features. The map layer was produced from the Medium-Resolution National Hydrography Dataset feature classes, through feature selection and cartographic generalization, based on reference to published small-scale ancillary data sets.
Types: Citation; Tags: Flow direction network, boundaries, Cumberland County, Delaware, Huntingdon County, All tags...
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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Types: Citation; Tags: Cumberland County, Huntingdon County, National Hydrography Dataset (NHD), Falls Church City, King George County, All tags...
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The National Land Cover Database products are created through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of federal agencies (www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection Agency (EPA), the U.S. Department of Agriculture - Forest Service (USDA-FS), the National Park Service (NPS), the U.S. Fish and Wildlife Service (USFWS), the Bureau of Land Management (BLM) and the USDA Natural Resources Conservation Service (NRCS). Previously, NLCD consisted of three major data releases based on a 10-year cycle. These include a...
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The National Land Cover Database products are created through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of federal agencies (www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection Agency (EPA), the U.S. Department of Agriculture - Forest Service (USDA-FS), the National Park Service (NPS), the U.S. Fish and Wildlife Service (USFWS), the Bureau of Land Management (BLM) and the USDA Natural Resources Conservation Service (NRCS). Previously, NLCD consisted of three major data releases based on a 10-year cycle. These include a...


map background search result map search result map USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS Topo Map Vector Data (Vector) 10745 Crisfield, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion USGS Combined Vector for Alexandria, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 3315 Benedict, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 4274 Blackwater River, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 19979 Hedgesville, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23368 Kenton, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29090 Middle River, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31903 Newark West, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32864 Ocean City, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35795 Point of Rocks, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48390 Westernport, Maryland 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49953 Wye Mills, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Mathias Point, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 NLCD 2006 Land Cover (2011 Edition, amended 2014), by State: NLCD2006_LC_Maryland NLCD 2006 Percent Developed Imperviousness (2011 Edition, amended 2014), by State: NLCD2006_IMP_Maryland USGS 1:24000-scale Quadrangle for Terrapin Sand Point, MD 1973 USGS 1:24000-scale Quadrangle for Terrapin Sand Point, MD 1973 USGS Topo Map Vector Data (Vector) 10745 Crisfield, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Alexandria, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 3315 Benedict, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 4274 Blackwater River, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 19979 Hedgesville, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23368 Kenton, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29090 Middle River, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31903 Newark West, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32864 Ocean City, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35795 Point of Rocks, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48390 Westernport, Maryland 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49953 Wye Mills, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Mathias Point, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS 1:24000-scale Quadrangle for Terrapin Sand Point, MD 1973 USGS 1:24000-scale Quadrangle for Terrapin Sand Point, MD 1973 NLCD 2006 Land Cover (2011 Edition, amended 2014), by State: NLCD2006_LC_Maryland NLCD 2006 Percent Developed Imperviousness (2011 Edition, amended 2014), by State: NLCD2006_IMP_Maryland USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1