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Federal
Prime Meridian
National Oceanic and Atmospheric Administration, Department of Commerce —
The Prime Meridian is the meridian (line of longitude) at which the longitude is defined to be 0 degrees. The Prime Meridian and its opposite, the Antimeridian (at... -
Federal
NOAA Electronic Navigational Charts (ENC) NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
The Office of Coast Survey (OCS) has been involved in the development of a NOAA Electronic Navigational Chart (NOAA ENC) suite to support the marine transportation... -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Low-Income Housing Tax Credit (LIHTC) Properties NGDA
Department of Housing and Urban Development —
The Low-Income Housing Tax Credit (LIHTC) property locations depicted in this map service represent the general location of the property. The locations of individual... -
Federal
NOAA ENC Direct to GIS
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA's Electronic Navigational Charts (NOAA ENCs) have been developed to support the marine transportation infrastructure and coastal management. The NOAA ENCs are in... -
Federal
Georeferenced Population Datasets of Mexico (GEO-MEX): GIS of Mexican States, Municipalities and Islands
National Aeronautics and Space Administration —
The GIS of Mexican States, Municipalities and Islands consists of attribute and boundary data for 1990. The attribute data include population, language, education,... -
Federal
China Dimensions Data Collection: China Administrative Regions GIS Data: 1:1M, County Level, 1990
National Aeronautics and Space Administration —
The China Administrative Regions GIS Data: 1:1M, County Level, 1990 consists of geographic boundary data for the administrative regions of China as of 31 December... -
Federal
Georeferenced Population Datasets of Mexico (GEO-MEX): Urban Place GIS Coverage of Mexico
National Aeronautics and Space Administration —
The Urban Place GIS Coverage of Mexico is a vector based point Geographic Information System (GIS) coverage of 696 urban places in Mexico. Each Urban Place is... -
Federal
China Dimensions Data Collection: GuoBiao (GB) Codes for the Administrative Divisions of the Peoples Republic of China
National Aeronautics and Space Administration —
The GuoBiao (GB) Codes for the Administrative Divisions of the People's Republic of China consists of geographic codes for the administrative divisions of China. The... -
Federal
Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Urban Extent Polygons, Revision 02
National Aeronautics and Space Administration —
The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Urban Extent Polygons, Revision 02 is an update to Revision 01, which included new settlements and... -
Federal
Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Urban Extents Grid
National Aeronautics and Space Administration —
The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Urban Extents Grid distinguishes urban and rural areas based on a combination of population counts... -
Federal
China Dimensions Data Collection: China County-Level Data from Provincial Economic Yearbooks, Keyed to 1:1M GIS Map
National Aeronautics and Space Administration —
The China County-Level Data on Provincial Economic Yearbooks, Keyed To 1:1M GIS Map consists of socioeconomic and boundary data for the administrative regions of... -
Federal
Low-Income Housing Tax Credit (LIHTC) Qualified Census Tracts
Department of Housing and Urban Development —
This dataset provides data on Qualified Census Tracts for the Low-Income Housing Tax Credit Program for 2024. LIHTC Qualified Census Tracts, as defined under the... -
Federal
Census block internal point coordinates and weights formatted specifically for use in R code of the Environmental Justice Analysis Multisite (EJAM) tool, USA, 2020, EPA, EPA AO OP ORPM
U.S. Environmental Protection Agency —
This is Census 2020 block data specifically formatted for use by the Environmental Protection Agency (EPA) in-development Environmental Justice Analysis Multisite... -
Federal
China Dimensions Data Collection: Fundamental GIS: Digital Chart of China, 1:1M, Version 1
National Aeronautics and Space Administration —
The Fundamental GIS: Digital Chart of China, 1:1M, Version 1 consists of vector maps of China and surrounding areas. The maps include roads, railroads, drainage... -
Federal
Antimeridian
National Oceanic and Atmospheric Administration, Department of Commerce —
The Antimeridian is the +/-180 degree line of longitude, exactly opposite the Prime Meridian. It is often used as the basis for the International Date Line (IDL)... -
Federal
Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries
National Aeronautics and Space Administration —
The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries are derived from the land area grid to show the outlines of pixels... -
Federal
Georeferenced Population Datasets of Mexico (GEO-MEX): Raster Based GIS Coverage of Mexican Population
National Aeronautics and Space Administration —
The Raster Based GIS Coverage of Mexican Population is a gridded coverage (1 x 1 km) of Mexican population. The data were converted from vector into raster. The... -
Federal
Three Nautical Mile Limit - Hawaii
National Oceanic and Atmospheric Administration, Department of Commerce —
The three nautical mile (3 nmi) limit refers to a traditional and now largely obsolete maritime boundary that defined a country's territorial waters, for the purposes... -
Federal
Archive of Census Related Products (ACRP): 1992 Boundary Files
National Aeronautics and Space Administration —
The 1992 Boundary Files portion of the Archive of Census Related Products (ACRP) consists of 1992 boundary data from the U.S. Census Bureau's Topologically Integrated...