From the California Dept. of Technology:
…the California State Geoportal officially launched December 23.
Containing data from more than 30 state departments, the Geoportal represents California’s powerful investment in this field of study, and our commitment of support.
From the FAQs
The California State Geoportal includes geographic data and applications from a multitude of California state entities. To view a listing of the participating State entities please visit: https://gis.data.ca.gov/pages/organizations. These State entities cover many topics including Water, Health, Energy, Environment, Transportation, Land Use, Boundaries, Geology, Wildlife, Education, Economy and Fire. Users can browse these topics from the homepage of the portal.
Read the Complete Launch Announcement
Direct to California State Geoportal