Ongoing research

This California Naturalist course focuses on the unique natural features of Sonoma County Regional Parks. It is designed to enhance public programs and outreach by certifying staff and interns through the Community Engagement division.Dates: October 29, 2025-March 28, 2026Fees: Free for employeesDelivery…

  Please join us for 2026 Prune Day! Lunch is provided at no cost, thanks to the generosity of the California Prune Board, with registration before February 17th, 2026. 

The California Naturalist Program is returning to Calaveras Big Trees State Park for an unforgettable journey into the heart of the Sierra Nevada’s ecology. This immersive course combines an engaging science curriculum with hands-on field experiences, creative problem-solving, authentic citizen science…

Tuleyome’s Certified California Naturalist (CalNat) program trains members of the public to become California Naturalists! No advanced degree or previous naturalist experience is required – Tuleyome teaches you everything you need to know to become certified. Our course is focused on the northern inner Coast…

This 11-week course uses the official “California Naturalist Handbook”, expert speakers, field excursions, and project-based learning to explore California’s ecological diversity and the unique habitats of the Cosumnes River watershed. Upon successful completion, you’ll become a Certified California…