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Federal
Maritime Limits and Boundaries of United States of America NGDA 42 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile... -
Federal
Inland Electronic Navigational Charts (IENC) NGDA 39 recent views
Army Corps of Engineers, Department of the Army, Department of Defense —
These Inland Electronic Navigational Charts (IENCs) were developed from available data used in maintenance of Navigation channels. Users of these IENCs should be... -
Federal
Major Land Resource Areas (MLRA) NGDA 36 recent views
Department of Agriculture —
The MLRA Geographic Database was prepared for Agriculture Handbook 296 re-publication and is used to support decisions about regional and national agricultural... -
Federal
BLM National Public Land Survey System Polygons NGDA 36 recent views
Department of the Interior —
This dataset represents the GIS Version of the Public Land Survey System including both rectangular and non-rectangular surveys. The primary source for the data is... -
Federal
BLM National SMA Surface Management Agency Area Polygons NGDA 34 recent views
Department of the Interior —
The Surface Management Agency (SMA) Geographic Information System (GIS) dataset depicts Federal land for the United States and classifies this land by its active... -
Federal
Tides and Currents Map: an interactive map of all CO-OPS stations NGDA 32 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This interactive map has many features designed to provide a quick and easy way to find a Center for Operational Oceanographic Products and Services (CO-OPS) station.... -
Federal
Outer Continental Shelf Oil and Natural Gas Pipelines - Gulf of Mexico Region NAD 27 NGDA 30 recent views
Department of the Interior —
This polyline data set contains the locations of oil and gas pipelines in the Gulf of Mexico Outer Continental Shelf federal waters that are associated with the oil... -
Federal
NOAA Electronic Navigational Charts (ENC) NGDA 24 recent views
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 24 recent views
Department of the Interior —
National Park Service unit points. -
Federal
Multibeam Bathymetry Database (MBBDB) NGDA 22 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Originally designed for military use, the multibeam echosounder has proved very useful for nautical charting, oceanographic research and modeling, habitat... -
Federal
Coastal Change Analysis Program (C-CAP) High Resolution Land Cover and Change Data NGDA 22 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA Coastal Change Analysis Program (C-CAP) produces national standardized high resolution land cover and change products for the coastal regions of the U.S. and... -
Federal
Federal Outer Continental Shelf (OCS) Sand and Gravel Borrow Areas (Lease Areas) NGDA 19 recent views
Department of the Interior —
The Federal Outer Continental Shelf (OCS) Marine Mineral (e.g. sand and gravel) Lease Areas layer is maintained by the Bureau of Ocean Energy Management (BOEM), part... -
Federal
Geographic Names Information System (GNIS) - USGS National Map Downloadable Data Collection NGDA 19 recent views
Department of the Interior —
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board... -
Federal
USGS Elevation Contours Overlay Map Service from The National Map NGDA 19 recent views
U.S. Geological Survey, Department of the Interior —
The USGS Elevation Contours service from The National Map (TNM) consists of contours generated for the conterminous United States from 1- and 1/3 arc-second elevation... -
Federal
Series Information for 2020 Census Voting District (VTD) State-based TIGER/Line Shapefiles, Current NGDA 18 recent views
U.S. Census Bureau, Department of Commerce —
This is a series-level metadata record. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information... -
Federal
OCS Blocks - Gulf of Mexico Region NGDA 18 recent views
Department of the Interior —
Outer Continental Shelf (OCS) blocks serve as the legal definition for BOEM offshore boundary coordinates used to define small geographic areas within an Official... -
Federal
Navigable Waterway Network Lines NGDA 17 recent views
Department of Transportation —
The Navigable Waterway Network Lines dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of... -
Federal
National Geospatial Data Asset (NGDA) NOAA Continuously Operating Reference Stations (CORS) Network NGDA 17 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide...