 | Aberdeen Geological Society - Informal group with organises a series of lectures aimed at amateur and professional geologists. Also information about field trips and geological field guides.
| American Geological Institute (AGI) - A nonprofit federation of 32 geoscientific and professional associations that represent geologists, geophysicists, and other earth scientists. Information services to geoscientists, geoscience education, and strives to increase public awareness of the role the geosciences play in mankind's use of resources and interaction with the environment.
| American Institute of Professional Geologists in Texas (AIPG-TX) - Texas section of the American Institute of Professional Geologists (AIPG). Representing geologists in Texas, U.S., and overseas.
| Buffalo Association of Professional Geologists, Inc. - The BAPG was promotes the geological sciences in Western New York.
| Bureau of Minerals and Petroleum: Greenland - Administration, coordination, and regulation services for Greenland's minerals and petroleum sectors.
| Calgary Mineral Exploration Group Society - The Society endeavours to promote public understanding of the Earth Sciences and the business interests of its members; Alberta, Canada.
| Craven & Pendle Geological Society - An amateur society based in north west England. Particularly concerned with Carboniferous geology and the Crinoidea.
| East Tennessee Geological Society - Society for amateur and professional geologists interested in the geology of Tennessee
| Geological Association of Canada - A national geoscience society, publisher and distributor of quality geoscience publications and journals, including Geoscience Canada, GEOLOG, Geotext, and Palaeontographica Canadiana.
| The Geological Society of America - Advancing the geosciences, enhancing the professional growth of its members, and promoting the geosciences in the service of humankind.
| Geological Society of Malaysia. - Promotes the advancement of earth sciences in Malaysia and South East Asia.
| Geological Society of Nevada, Southern Chapter - Organization based in Las Vegas whih holds monthly seminars in geology. Annual field trip to sites of geologic interest.
| The Geological Society of Sweden - A scientific, non-profit organization for the advancement and promotion of geology, theoretical as well as applied, and related fields of natural and technological sciences. Founded 1871.
| Geologists' Association - Promotes the study of geology by both professionals and amateurs through a range of activities, including publications, lecture meetings, and field trips both within the UK and abroad.
| Hull Geological Society - UK society which publishes "Humberside Geologist." Site includes membership information and schedule of events.
| International Association for Mathematical Geology (IAMG) - To promote international cooperation in the application and use of mathematics in geological research and technology.
| International Association for Obsidian Studies - Information on the major interest areas of the IAOS including obsidian hydration dating, obsidian characterization ("sourcing"), geoarchaeological obsidian studies, obsidian and lithic technology and the prehistoric procurement and utilization of obsidian.
| International Union of Geological Sciences (IUGS) - Non-governmental scientific organization which promotes and supports the study of geological problems of world-wide significance, and facilitates international and interdisciplinary cooperation in the earth sciences.
| International Work Group on Geospatial Analysis of Glaciated Environments - Focusing on investigations of modern and ancient glaciated environments by utilizing geographic information systems (GIS) techniques.
| NAGT - National Association of Geology Teachers
| Northwest Geological Society (NWGS) - A regional geological association based in Seattle, Washington.
| Oldham Geological Society - Information on activities, past and present, pictures of outings and contact details. (UK)
| Society for Organic Petrology - For scientists and engineers involved with coal petrology, kerogen petrology, organic geochemistry and related disciplines.
| Society of Petroleum Engineers - Extensive network of international petroleum engineers.
| Tooele Gem and Mineral Society - Dedicated to promote and educate amateur enthusiasts of gems, minerals, fossils and lapidary.
| Yorkshire Geological Society - Scientific organization with an interest in all aspects of geology, principally in Northern England and adjacent areas.
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