USGS National Geologic Map Database Collection

The National Geologic Map Database (NGMDB) is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. According to the Geologic Mapping Act, the U.S. Geological Survey and the Association of American State Geologists (AASG) shall cooperatively build this national archive, according to technical and scientific standards whose development is coordinated by the NGMDB. At present, the NGMDB consists of a comprehensive set of publication citations, stratigraphic nomenclature, downloadable content, unpublished source information, and guidance on standards development. The NGMDB contains information on more than 90,000 maps and related geoscience reports published from the early 1800s to the present day, by more than 630 agencies, universities, associations, and private companies.

Data and Resources

Field Value
access_constraints ["Use Constraints: None. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey.", "Access Constraints: none"]
bbox-east-long -65.0000
bbox-north-lat 74.0000
bbox-south-lat 23.0000
bbox-west-long -179.0000
collection_metadata true
contact-email drsoller@usgs.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2012-01-01"}]
frequency-of-update continual
graphic-preview-description Browse graphic
graphic-preview-file http://ngmdb.usgs.gov/geoDataGov/browse/ngmdbCollection.display.jpg
graphic-preview-type jpg
licence ["Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof."]
metadata-date 2015-04-28
metadata-language eng; USA
metadata_type geospatial
old-spatial {"type": "Polygon", "coordinates": [[[-179.0, 23.0], [-65.0, 23.0], [-65.0, 74.0], [-179.0, 74.0], [-179.0, 23.0]]]}
progress underDevelopment
resource-type dataset
responsible-party [{"name": "U.S. Geological Survey", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-179.0, 23.0], [-65.0, 23.0], [-65.0, 74.0], [-179.0, 74.0], [-179.0, 23.0]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • aasg
  • aeromagnetics
  • amerigeo
  • amerigeoss
  • association-of-american-state-geologists
  • bedrock-geology
  • ckan
  • coal
  • coastal-and-marine-geology
  • core-science-systems
  • css
  • earthquakes
  • environmental-hazards
  • environmental-resources
  • geo
  • geochemistry
  • geochronology
  • geologic-map
  • geology
  • geology-theme
  • geophysics
  • geoss
  • geothermal-resources
  • gis
  • gravity
  • hazards
  • image-service
  • landslides
  • mapview
  • metallic-resources
  • national
  • national-cooperative-geologic-mapping-program
  • national-geologic-map-database
  • national-geospatial-data-asset
  • ncgmp
  • ngda
  • ngmdb
  • non-metallic-resources
  • north-america
  • oil-and-gas
  • paleontology
  • petroleum
  • radioactivity
  • resources
  • stratigraphic-nomenclature
  • stratigraphy
  • surficial-geology
  • united-states
  • us
  • us-geological-survey
  • usgs
  • volcanoes
  • water-resources
  • web-mapping
  • wms
isopen False
metadata_created 2025-11-22T09:13:01.773514
metadata_modified 2025-11-22T09:13:01.773518
notes The National Geologic Map Database (NGMDB) is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. According to the Geologic Mapping Act, the U.S. Geological Survey and the Association of American State Geologists (AASG) shall cooperatively build this national archive, according to technical and scientific standards whose development is coordinated by the NGMDB. At present, the NGMDB consists of a comprehensive set of publication citations, stratigraphic nomenclature, downloadable content, unpublished source information, and guidance on standards development. The NGMDB contains information on more than 90,000 maps and related geoscience reports published from the early 1800s to the present day, by more than 630 agencies, universities, associations, and private companies.
num_resources 1
num_tags 55
title USGS National Geologic Map Database Collection