GeMS Wiki

Collaborative Database Effort for Geology

Building a multi-map, multi-user GeMS database

The Alaska Division of Geological & Geophysical Surveys (DGGS) has undertaken the challenge of developing a multi-map, multi-user database model based on the single-map Geologic Map Schema (GeMS) developed by the USGS and state geological surveys. The multi-map model is intended for national use. A multi-map geodatabase will help DGGS meet the future goal of a 1:100,000-scale Alaska compilation, and provide a vehicle for other geologic surveys and agencies to organize and share their own geologic data. DGGS is seeking interested individuals to take part in discussions via teleconferences to provide input on the needs of geologic surveys and other organizations, help develop the specifications of the database model, and share ideas to help the community.

Telecons or Webex will usually be held the 2nd Monday of the month. The next meeting is scheduled for Monday, August 10, 2020, 2pm ET.


  • Roll call and comments
  • Presentation: Matt Johnson from the Indiana Geological & Water Survey will share their ideas about 3D data, GeMS, and their workflow.
  • Presentation: Boyan Brodaric from Natural Resources Canada will present information on Canada3D, including both 2D and 3D compilations and the associated national map database.
  • Select next meeting date and topic, tentatively September 14.

Table of Contents, Alaska Division of Geological & Geophysical Surveys