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University
National Park Boundaries
Earth Data Analysis Center, University of New Mexico —
National Park Service unit boundaries. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Maritime Limits and Boundaries of United States of America NGDA
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
TIGER/Line Shapefile, 2022, State, Guam, GU, Census Tract
U.S. Census Bureau, Department of Commerce —
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master... -
Federal
Munitions and Explosives of Concern
National Oceanic and Atmospheric Administration, Department of Commerce —
Munitions and explosives of concern (MEC) have been deposited on the seabed of the United States outer continental shelf since World War I. The bulk of these... -
Federal
Slope grid (5 m) derived from gridded bathymetry of US Territory of Guam
National Oceanic and Atmospheric Administration, Department of Commerce —
Slope is derived from gridded (5 m cell size) bathymetry from four sources: Multibeam bathymetry collected by Coral Reef Ecosystem Division aboard NOAA R/V AHI, and... -
Federal
2023 Cartographic Boundary File (SHP), County Subdivision for Guam, 1:500,000
U.S. Census Bureau, Department of Commerce —
The 2023 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File /... -
Federal
TIGER/Line Shapefile, 2022, State, Guam, GU, 2020 Census Block
U.S. Census Bureau, Department of Commerce —
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master... -
Federal
Slope grid derived from gridded bathymetry of Galvez Bank, South Galvez Bank, and 11-Mile Reef, Territory of Guam, USA.
National Oceanic and Atmospheric Administration, Department of Commerce —
Slope is derived from gridded (5 m cell size) multibeam bathymetry, collected aboard NOAA Ship Oscar Elton Sette. Cell values reflect the maximum rate of change (in... -
Federal
Gridded multibeam bathymetry of Guam Island, Guam U.S. Territory
National Oceanic and Atmospheric Administration, Department of Commerce —
Gridded bathymetry at 60m resolution surrounding Guam Island, Guam U.S. Territory. Bottom coverage was achieved in depths between 0 and ~3500 meters. The Arc ASCII... -
Federal
2001-2003 IKONOS Imagery for Guam and the Commonwealth of the Northern Mariana Islands (CNMI) Utilized to Map Shallow Water Benthic Habitats
National Oceanic and Atmospheric Administration, Department of Commerce —
This project is a cooperative effort among the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment; the... -
Federal
Habitat Zone, Cover and Structure Maps of Manua Islands 2001-2003, Derived from IKONOS Imagery
National Oceanic and Atmospheric Administration, Department of Commerce —
This project is a cooperative effort between the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, the... -
Federal
1:6000 Scale (6K) Quadrangles developed by USEPA to Support Reconnaissance, and Tactical and Strategic Planning for Emergency Responses and Homeland Security Events (Region 9 Extract)
U.S. Environmental Protection Agency —
Reference quads for emergency response reconnaissance developed for use by the US Environmental Protection Agency. Grid cells are based on densification of the USGS... -
Federal
TIGER/Line Shapefile, 2021, State, Guam, Places
U.S. Census Bureau, Department of Commerce —
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master... -
Federal
Seafloor substrate (hard and soft bottom) maps at select islands and atolls in American Samoa, the Mariana Archipelago, and the Pacific Remote Island Areas
National Oceanic and Atmospheric Administration, Department of Commerce —
Seafloor substrate (i.e., hard vs. soft bottom) maps from 0 to up to 50 m depths around select islands and atolls in American Samoa, the Mariana Archipelago, and the... -
Federal
EnviroAtlas - Landcover Summaries by Place for Guam
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area within each census place in Guam that is classified as Canopy, Impervious Surface, and Vegetation... -
Federal
Ground Validation GPS of the Mariana Archipelago
National Oceanic and Atmospheric Administration, Department of Commerce —
This project is a cooperative effort among the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment; the... -
Federal
2023 Cartographic Boundary File (SHP), Census Tract for Guam, 1:500,000
U.S. Census Bureau, Department of Commerce —
The 2023 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File /...