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Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
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... -
Federal
RESTORE Sponsored Research Project: Protecting Texas coastlines from potential oil spills in Galveston Bay using drone surveys and maps of a new response effectiveness index
National Oceanic and Atmospheric Administration, Department of Commerce —
Galveston Bay and the surrounding Texas coast are vulnerable to marine oil spills, from both the high volume of marine commerce through the Galveston Bay ship channel... -
State
WBDLine NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
University
US Forest Service Region 3 Wilderness Areas
Earth Data Analysis Center, University of New Mexico —
This file contains a feature class depicting National Forest System land parcels that have a Congressionally designated boundary. Examples include National Wilderness... -
Federal
FTA Regions
Department of Transportation —
The Federal Transit Administration (FTA) Regions dataset was created on October 12, 2022 from the Federal Transit Administration (FTA) and is part of the U.S.... -
Federal
NCCOS Assessment: Benthic Habitat Map for the Insular Shelf South of St. Thomas and St. John, U.S. Virgin Islands (NCEI Accession 0170098)
National Oceanic and Atmospheric Administration, Department of Commerce —
The dataset describes the spatial distribution of benthic habitats on the insular shelf south of St. Thomas and St. John, U.S. Virgin Islands. These benthic habitats... -
Federal
Sea Turtle Stranding Network Reports
National Oceanic and Atmospheric Administration, Department of Commerce —
The Sea Turtle Stranding and Salvage Network (STSSN) was formally established in 1980 to collect information on and document the stranding of marine turtles along the... -
Federal
NCCOS Assessment: Investigating the effects of chronic turbidity exposure to priority Florida coral species, Acropora cervicornis 2023-08-15 to 2023-11-07 (NCEI Accession 0309260)
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset is comprised of many biochemical analyses performed throughout the course of a 90-day laboratory exposure experiments to determine the chronic effects of... -
State
National Forest Boundaries
State of Oregon —
An area encompassing all the National Forest System lands administered by an administrative unit. The area encompasses private lands, other governmental agency lands,... -
Federal
EnviroAtlas - HU12_polygon
U.S. Environmental Protection Agency —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of... -
Federal
National Status and Trends: Mussel Watch Program
National Oceanic and Atmospheric Administration, Department of Commerce —
Mussel Watch is the longest running continuous chemical contaminant monitoring program in U.S. coastal and Great Lakes waters and was created in response to concerns... -
Federal
RESTORE Sponsored Research Project: Gulf-wide assessment of habitat use and habitat-specific production estimates of nekton in turtlegrass (Thalassia testudinum)
National Oceanic and Atmospheric Administration, Department of Commerce —
This project assesses the use of turtlegrass by finfish and shellfish across the northern Gulf of America (formerly Gulf of Mexico) and evaluates the specific ways... -
Federal
Mesophotic and Deep Benthic Communities: Annotations and images of corals, sponges, and fish from the northern Gulf of America from 2017-07-20 to 2021-08-15 (NCEI Accession 0299813)
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset provides geo-referenced observations on the occurrence of corals, sponges, fishes, and invertebrates in the deep waters of the northern Gulf of America.... -
Federal
NCCOS Mapping: Merged Bathymetry Data in the Channel Islands National Marine Sanctuary for Benthic Habitat Mapping from 1998 to 2022 (NCEI Accession 0304093)
National Oceanic and Atmospheric Administration, Department of Commerce —
We created merged bathymetry surfaces segmented in GeoTIFF format by resolution and depth within the Channel Islands National Marine Sanctuary (CINMS) from more than... -
City
AskTED Data - May 09, 2025
City of Austin —
AskTED is the online Texas Education Directory. This system provides contact and address information for Texas public schools, districts, and Education Service... -
State
6-digit HU (Basin) NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
State
CT DCF Town Boundaries
State of Connecticut —
This file contains boundaries for each Town in the state, including the DCF Region and Area Office responsible for providing services to each Town. This data is as of... -
State
HydroLocation - Sink, Spring, Waterbody Outlet NGDA
State of Oregon —
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D... -
Federal
NOAA NCCOS Assessment: Prioritizing Areas for Future Seafloor Mapping and Exploration in the U.S. Caribbean from 2019-06-28 to 2019-07-28
National Oceanic and Atmospheric Administration, Department of Commerce —
Spatial information about the seafloor is critical for decision-making by marine resource science, management and tribal organizations. Coordinating data needs can...