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University
National Park Boundaries
Earth Data Analysis Center, University of New Mexico —
National Park Service unit boundaries. -
Federal
National Bridge Inventory NGDA
Federal Geographic Data Committee —
The National Bridge Inventory dataset is as of June 20, 2025 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation... -
Building Footprints 2019
District of Columbia —
Building. The dataset contains polygons representing planimetric buildings, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the... -
Federal
Quality-controlled sea surface marine physical, meteorological and other in situ measurements from the NCEI Surface Underway Marine Database (NCEI-SUMD)
National Oceanic and Atmospheric Administration, Department of Commerce —
This collection contains global in-situ sea surface underway measurements from the NOAA NCEI Surface Underway Marine Database (NCEI-SUMD, formerly the NCEI... -
Federal
Coastal Ocean Reanalysis (CORA)
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA's Coastal Ocean Reanalysis (CORA) couples long-term water level observations with hydrodynamic modeling to create historical information between tide stations to... -
Federal
United States Coast Pilot (volume 1 through 9)
National Oceanic and Atmospheric Administration, Department of Commerce —
The United States Coast Pilot is a series of 9 nautical books that cover a wide variety of information important to navigators of U.S. coastal and intercoastal... -
Federal
IceBridge UAF L1B HF Geolocated Radar Echo Strength Profiles V001
National Aeronautics and Space Administration —
This data set contains radar echograms acquired by the University of Alaska Fairbanks High-Frequency Radar Sounder over select glaciers in Alaska. The data are... -
State
Trail Roadway
State of Connecticut —
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal... -
Roads 2017
District of Columbia —
Roads. The dataset contains polygons representing planimetric roads, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief... -
Federal
F00644: NOS Hydrographic Survey , 2014-07-23
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe... -
Federal
Physical, meteorological, and biological data collected from non-federal stations assembled by the Northwest Association of Networked Ocean Observing Systems (NANOOS)
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset contains physical, meteorological and geochemical data, collected at moorings located in Puget Sound, WA and along the Washington and Oregon coasts. The... -
Federal
CO-OPS Air Gap Observations from Various Bridges within the United States and Its Territories
National Oceanic and Atmospheric Administration, Department of Commerce —
The Center for Operational Oceanographic Products and Services (CO-OPS) of the National Ocean Service (NOS), an organizational element of NOAA, operates and maintains... -
Federal
Bermuda Deep Water Caves 2011: Dives of Discovery between 20110607 and 20110627
National Oceanic and Atmospheric Administration, Department of Commerce —
During the three week NOAA Ocean Exploration project, Bermuda Deep Water Caves 2011: Dives of Discovery, our four member deep team, aided by numerous assistants,... -
Curbs 2019
District of Columbia —
Curb Line. The dataset contains polylines representing planimetric curbs, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the... -
Floodplain General Structures
District of Columbia —
Location and attributes for flood control structures shown on the flood profile and FIRM. This table is required whenever hydraulic structures are shown in the flood... -
Hydrography Lines
District of Columbia —
This layer contains hydrography such as streams, rivers, and other linear hydrography features. Hidden hydrography, inferred drainage connectors, or culverts connect... -
Railroads
District of Columbia —
Centerlines of railroads or Metrorail are captured. The line is at the midpoint between each rail line. Hidden features due to tunnels, overpasses, or bridges are... -
Roads
District of Columbia —
Road edges are defined as the edge of the improved surface including the improved shoulder but do not include the unimproved shoulder, only the travel part of the... -
Federal
Air Gap Data from CO-OPS
National Oceanic and Atmospheric Administration, Department of Commerce —
The Center for Operational Oceanographic Products and Services (CO-OPS) of the National Ocean Service (NOS), an organizational element of NOAA, operates and maintains...