Introduction to Geographical Information Systems (GIS):

Geographical Information Systems (GIS) provide a powerful tool for combining maps with database information. GIS analyzes spatial location and integrates data to help foster smarter decision-making, identify trends, monitor change, and support management strategies.

  • CAL FIRE’s Forest Practice Watershed Mapper is a GIS application for viewing and querying data. It not only contains locations and summary statistics on timber harvesting, it is a good resource for viewing fisheries’ status.

National Resources Conservation Service (NRCS)

  • Natural Resources Conservation Service’s Web Soil Survey provides soil data and information produced by the National Cooperative Soil Survey. Click on the green button “START WSS” to get started.

Sonoma County

  • The Sonoma Veg Map provides free fine scale datasets including countywide LiDAR data, orthophotography, vegetation and habitat maps.

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