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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: AL, Administrative watershed units, Alabama, Alcorn County, Area of Complex Channels, All tags...
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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: AL, Administrative watershed units, Administrative watershed units, Alabama, Alcorn County, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: AK, AL, Acadia Parish, Adams County, Administrative watershed units, All tags...
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Florida - These data were taken from the Florida Boating Access Facilities Inventory and Economic Study including a pilot study for Lee County: A Report to the Florida Fish and Wildlife Conservation Commission on August 30, 2009. This GIS point data set is based on the data contained in the final databases that were provided to FWC on June 2, 2009 in Microsoft Access format.Mississippi - Boat ramps and marinas in the coastal counties of Mississippi are included in this data layer. These facilities were primarily derived from a document from the Mississippi Department of Marine Resources website. Due to changes after Hurricane Katrina, some marinas and boat ramps may have been abandoned or gone out-of-business. Some...
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This dataset shows Marinas within the Gulf of Mexico
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Aransas County, Baldwin County, Boat, Boat Ramps, All tags...
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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: AK, AL, Adams County, Administrative watershed units, Administrative watershed units, All tags...
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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: AK, AL, Acadia Parish, Adams County, Administrative watershed units, All tags...
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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: AL, Administrative watershed units, Administrative watershed units, Alabama, Alcorn County, All tags...
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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: AK, AL, Acadia Parish, Adams County, Administrative watershed units, All tags...
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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: AK, AL, Adams County, Administrative watershed units, Administrative watershed units, All tags...
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Heavy rainfall occurred across Louisiana during March 8-19, 2016, as a result of a massive, slow-moving southward dip in the jet stream, which moved eastward across Mexico, then neared the Gulf Coast, funneling deep tropical moisture into parts of the Gulf States and the Mississippi River Valley. The storm caused major flooding in north-central and southeastern Louisiana. Digital flood-inundation maps for a 16.5-mile reach within the communities of Folsom and Covington near the Bogue Falaya River in Washington Parish and St. Tammany Parish, LA was created by the U.S. Geological Survey (USGS) in cooperation with Federal Emergency Management Agency (FEMA) to support response and recovery operations following a March...


    map background search result map search result map Marinas in the Gulf of Mexico USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS National Hydrography Dataset (NHD) Best Resolution for Louisiana 20160415 State or Territory FileGDB 10.1 - Flowlines USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Louisiana 20140807 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Mississippi 20140807 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Louisiana 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Mississippi 20140807 State or Territory FileGDB 10.1 Bogue Falaya Flood Map Files Marinas in the Gulf of Mexico Bogue Falaya Flood Map Files USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS National Hydrography Dataset (NHD) Medium Resolution for Mississippi 20140807 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Mississippi 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution for Louisiana 20160415 State or Territory FileGDB 10.1 - Flowlines USGS National Hydrography Dataset (NHD) Medium Resolution for Louisiana 20140807 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Louisiana 20140807 State or Territory FileGDB 10.1 Marinas in the Gulf of Mexico Marinas in the Gulf of Mexico