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Hurricane Harvey made landfall near Rockport, Texas on August 25 as a category 4 hurricane with wind gusts exceeding 150 miles per hour. As Harvey moved inland the forward motion of the storm slowed down and produced tremendous rainfall amounts to southeastern Texas and southwestern Louisiana. Historic flooding occurred in Texas and Louisiana as a result of the widespread, heavy rainfall over an 8-day period in Louisiana in August and September 2017. Following the storm event, U.S. Geological Survey (USGS) hydrographers recovered and documented 2,123 high-water marks in Texas, noting location and height of the water above land surface. Many of these high-water marks were used to create flood-inundation maps for...
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Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.
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Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.
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Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.
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The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...
Tags: 10-digit, 12-digit, 14-digit, 16-digit, 2-digit, All tags...
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Layers of geospatial data include roads, airports, trails, and railroads.
Tags: Accomack, Airport Complex, Airport Point, Airport Runway, Airports, 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...
Tags: Administrative watershed units, Administrative watershed units, Albany, Allegany, Area of Complex Channels, 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...
Tags: Accomack, Administrative watershed units, Administrative watershed units, Albemarle, Alexandria, All tags...


map background search result map search result map Map of Claims from Monitor Group down to Ray Mine, T3S and T2S, R14E USGS Topo Map Vector Data (Vector) 13948 Elizabeth NJ (published 20231222) Shapefile USGS National Map Index Names (published 20240120) Shapefile USGS National Boundary Dataset (NBD) in New York State or Territory (published 20240215) FileGDB USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20240111) FileGDB USGS 1:250000-scale Quadrangle for Richmond, VA 1973 USGS 1:24000-scale Quadrangle for Richmond, IL 1963 USGS 1:31680-scale Quadrangle for Richmond, VA 1939 Brazos River USGS US Topo 7.5-minute map for Augusta East, GA-SC 2011 USGS US Topo 7.5-minute map for The Narrows, NY-NJ 2016 USGS US Topo 7.5-minute map for Perth Amboy, NJ-NY 2014 USGS US Topo 7.5-minute map for Jackson, SC-GA 2011 USGS US Topo 7.5-minute map for Tappahannock, VA 2016 USGS US Topo 7.5-minute map for Ellerbe, NC 2010 USGS US Topo 7.5-minute map for Lilesville, NC 2013 USGS US Topo 7.5-minute map for Pinebluff, NC 2016 USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20231227) Shapefile USGS National Hydrography Dataset Best Resolution (NHD) - New York (published 20231227) FileGDB USGS National Transportation Dataset (NTD) for Virginia (published 20240216) GeoPackage USGS Topo Map Vector Data (Vector) 13948 Elizabeth NJ (published 20231222) Shapefile USGS 1:24000-scale Quadrangle for Richmond, IL 1963 USGS 1:31680-scale Quadrangle for Richmond, VA 1939 USGS US Topo 7.5-minute map for Augusta East, GA-SC 2011 USGS US Topo 7.5-minute map for The Narrows, NY-NJ 2016 USGS US Topo 7.5-minute map for Perth Amboy, NJ-NY 2014 USGS US Topo 7.5-minute map for Jackson, SC-GA 2011 USGS US Topo 7.5-minute map for Tappahannock, VA 2016 USGS US Topo 7.5-minute map for Ellerbe, NC 2010 USGS US Topo 7.5-minute map for Lilesville, NC 2013 USGS US Topo 7.5-minute map for Pinebluff, NC 2016 Brazos River USGS 1:250000-scale Quadrangle for Richmond, VA 1973 USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20231227) Shapefile USGS National Transportation Dataset (NTD) for Virginia (published 20240216) GeoPackage USGS National Map Index Names (published 20240120) Shapefile USGS National Boundary Dataset (NBD) in New York State or Territory (published 20240215) FileGDB USGS National Hydrography Dataset Best Resolution (NHD) - New York (published 20231227) FileGDB USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20240111) FileGDB