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The National Hydrography Dataset (NHD) is a digital database of surface water features used to make maps. It contains features such as lakes , ponds , streams , rivers , canals , dams , and stream gauges for the United States .
Source data for the table below came from topographic maps created by the United States Geological Survey and published on-line by TopoQuest, [2] and from the Atlas of Oregon; [1] the Oregon Atlas and Gazetteer; [3] two federally produced geographic information system (GIS) datasets—the National Hydrography Dataset and the National Watershed ...
3D rendering of a hydrologically-conditioned digital elevation model. This example from the U.S. Geological Survey shows “walling” or “fencing” using data from the Watershed Boundary Dataset (WBD) and “burning” of streams from the National Hydrography Dataset (NHDPlus).
The National Map is part of the USGS National Geospatial Program. [3] The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. The National Map is accessible via the Web, as products and services, and as downloadable data ...
The National Hydrography Dataset lists one named tributary in the Charlotte River watershed, Spring Creek, [9] a right tributary approximately 3.6 miles (5.8 km) long. [4] Near its mouth the river flows through Michigan State University's Dunbar Forest Experiment Station, an off-campus forest management research area. [6] [10] [11]
The product of such hydrography is most often seen on nautical charts published by the national agencies and required by the International Maritime Organization (IMO), [4] the Safety of Life at Sea (SOLAS) [5] and national regulations to be carried on vessels for safety purposes. Increasingly those charts are provided and used in electronic ...
Tygarts Creek is a tributary of the Ohio River in Carter and Greenup counties of northeastern Kentucky in the United States. [1] It is 88 miles (142 km) long [2] and drains an area of 339.6 square miles (880 km 2). [3]
Broad Run is a 4.3-mile-long (6.9 km) tributary of White Clay Creek located principally in New Garden Township, Chester County, Pennsylvania, in the United States. [1]The headwaters of Broad Run are in Kaolin, just south of Pennsylvania Route 41.