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United States Geological Surveys
Association of American State Geologists (AASG)
Access the geological surveys of the 50 states and Puerto Rico.
U.S. Geologic Survey
Surveys, data, software, publications, and real-time updates. From the USGS.
USGS Board on Geographic Names
Search official geographic names, local, international, and underseas.
USGS Geology of National Parks
3D and photographic tours of the all of our national parks. Features park geology and natural history.
USGS Mineral Resources Program (MRP)
Recent Mineral Industry Surveys, Minerals Yearbooks, and Mineral Commodity Summaries. Learn how minerals are used, produced, and how they interact with the environment.
USGS National Geologic Map Database
Locate maps and information on geology, hazards, earth resources, geophysics, geochemistry, geochronology, paleontology, and marine geology.
The U.S. Geologic Names Lexicon (Geolex)
The U.S. Geologic Names Lexicon ("Geolex") is a national compilation of names and descriptions of geologic units. Part of the National Geologic Map Database.
USGS Publications Warehouse
Access the over 150,000 publications written by USGS scientists over the century-plus history of the bureau.
USGS Texas Water Science Center
Real-time data and updates on the water resources of Texas. Includes links to recent scientific publications, seminars and and news related to water resources in Texas.
Water Resources of the United States
Status of the water resources in the United States. From the USGS.
International Geological Surveys
Alberta Geological Survey
The AGS is the official geological survey of Alberta. It provides geological information and advice about the geology of Alberta. Site includes data, maps, models and conversion tools.
Natural Resources Canada
Canada’s geomatics and geoscience organization. Access publications, data, maps, and tools for assessing Canada's geologic resources. The site also links to the forests, energy, mining, hazards and climate change resources of Canada.
British Antarctic Survey
The center for polar science and polar operations, addressing global issues and impacts of a changing climate. Access data, research papers, news and images.
British Geologic Council
Part of the National Environmental Research Council (NERC). This organization advises the UK government on all aspects of geoscience as well as updates to industry, academia, and the public. Includes the National Geoscience Data Centre (NGDC).
The nation's official advisor on the geology and geography of Australia. Access data, interactive maps and 3D models, and research papers.
The British Columbia Geological Survey (BCGS)
The ministry branch responsible for producing and housing the public geological and geoscientific information about mineral resources and mineral potential in the province. Includes maps, publications, and geologic survey data of the rock and mineral resources of British Columbia.
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A geological survey is a detailed, systematic study of a region's topography, geology and mineral resources. Geological surveys are often conducted for the purpose of creating a geologic map or model. The major resources for finding geological surveys can be found on this page.
Glossary of Cartographic Terms