REGIS GRASSLinks 3.1: Public Access GIS

GRASSLinks is a World Wide Web interface to a geographic information system (GIS), offering public access to mapped information. GRASSLinks provides GIS display and analysis tools to facilitate data sharing and cooperation between environmental planning agencies, public action groups, citizens, and private entities.


  • Review the GIS data layers that can be viewed and analyzed in GRASSLINKS.
    or
  • Select one of the REGIS geodatabases listed below to begin GRASSLinks:
    San Francisco Bay/Delta and Beyond

    This comprises our complete on-line archive of geographic information for the San Francisco Bay region and beyond; we are adding datasets for regions throughout the state. REGIS has prepared a number of data layers for the California Department of Water Resources, the State Lands Commission, The San Francisco Estuary Project, the Bay Conservation and Development Commission, the Regional Water Quality Control Board, the Delta Protection Commision, and others. Here you can view an introduction to the GIS data layers in this collection.

    Sacramento - San Joaquin Delta

    The Sacramento / San Joaquin Delta region is rich in agriculture, wetland habitat, and recreation resources; and its waterways are a key link in the State's water system. The Delta Protection Commission (DPC) has selected key data layers from the REGIS geodatabase and has also instigated the preparation of additional layers by the Teale Data Center.

    GRASSLinks was developed by Dr. Susan Huse at the Research Program in Environmental Planning and GIS (REGIS), at the University of California, Berkeley. GRASSLinks is based on the public domain software GRASS from the US Army Corps of Engineers.


    Disclaimer: Use of GRASSLinks and the data accessed by it is provided as-is without any guarantees of quality, completeness, currentness, or performance. For more information, see the GRASSLinks (c) Copyright and Disclaimer.


  • Further Information About GRASSLinks
  • Visit REGIS at the University of California, Berkeley
  • Send us your comments or suggestions about GRASSLinks