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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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This dataset provides a subset of well construction information provided by the driller's well logs. Complete well logs can be accessed on the Minnesota Well Index online (http://www.health.state.mn.us/ divs/eh/cwi/).
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This dataset provides aqueous nitrate+nitrite, aqueous manganese, aqueous iron, and total sulfate measurements in groundwater samples from 254 newly constructed private residential wells between 2014 and 2016. The study focuses on three geologically distinct regions of Minnesota: central, northwest, and northeast. These study regions were chosen due to their prevalent elevated As concentrations in drinking water. Each of the 254 wells were sampled in three rounds by the Minnesota Department of Health (MDH). The timing of the three sampling rounds was (1) immediately or shortly after well construction (round 1); (2) 3-6 months after initial sample collection (round 2); and (3) 12 months after initial sample collection...
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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...
Tags: Archer County, Baylor County, Beckham County, Briscoe County, Bryan County, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS Topo Map Vector Data (Vector) 8630 Chloe, West Virginia 20200414 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 17218 Gilboa, West Virginia 20200416 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 22208 Ivydale, West Virginia 20200414 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43413 Strange Creek, West Virginia 20200416 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43413 Strange Creek, West Virginia 20200416 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14834 Fairfield SE, Nebraska 20210714 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 8819 Cisne, Illinois 20210629 for 7.5 x 7.5 minute FileGDB 10.1 Selected well construction information USGS Topo Map Vector Data (Vector) 3417 Beresford, South Dakota 20210715 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 11401 Datto, Arkansas 20200915 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14815 Fairfield, Nebraska 20210715 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23115 Kearney SW, Missouri 20210623 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25164 Lawson, Missouri 20210623 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 28349 McDougal, Arkansas 20200916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71082 Nottely Dam, Georgia 20200914 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 33263 Ong, Nebraska 20210714 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46794 Vermillion SE, South Dakota 20210715 for 7.5 x 7.5 minute FileGDB 10.1 Aqueous nitrate+nitrite, aqueous manganese, aqueous iron, and total sulfate data USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 1113 (published 20180813) USGS Topo Map Vector Data (Vector) 8630 Chloe, West Virginia 20200414 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 17218 Gilboa, West Virginia 20200416 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 22208 Ivydale, West Virginia 20200414 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43413 Strange Creek, West Virginia 20200416 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43413 Strange Creek, West Virginia 20200416 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14834 Fairfield SE, Nebraska 20210714 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 8819 Cisne, Illinois 20210629 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 3417 Beresford, South Dakota 20210715 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 11401 Datto, Arkansas 20200915 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14815 Fairfield, Nebraska 20210715 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23115 Kearney SW, Missouri 20210623 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25164 Lawson, Missouri 20210623 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 28349 McDougal, Arkansas 20200916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71082 Nottely Dam, Georgia 20200914 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 33263 Ong, Nebraska 20210714 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46794 Vermillion SE, South Dakota 20210715 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 1113 (published 20180813) Selected well construction information Aqueous nitrate+nitrite, aqueous manganese, aqueous iron, and total sulfate data USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines