| January 25, 2026 |
Naturalist Ed Series: Observation & Inquiry |
| January 25, 2026 |
Naturalist Ed Series: Amphibians of Osborn Preserve |
| January 24, 2026 |
Naturalist Ed Series: Geology of Sonoma Mountain |
| December 13, 2025 |
Osborn Mushroom Blitz 2025 |
| December 7, 2025 |
Galbreath Mushroom Blitz 2025 |
| December 3, 2025 |
Nature as Medicine: Pre-Finals Week Stress Release Activity |
| December 2, 2025 |
Nature as Medicine: Pre-Finals Week Stress Release Activity |
| November 24, 2025 |
Watershed Restoration |
| November 22, 2025 |
Excursión de Historia Natural |
| November 22, 2025 |
Guided Public Hikes |
| November 17, 2025 |
Live from the Field: Global Change |
| November 15, 2025 |
Excursión de Historia Natural |
| November 15, 2025 |
Guided Public Hikes |
| November 8, 2025 |
Excursión de Historia Natural |
| November 8, 2025 |
Guided Public Hikes |
| November 8, 2025 |
Wildfire Prevention Volunteer Day |
| November 1, 2025 |
Guided Public Hikes |
| October 31, 2025 |
Halloween-Inspired Public Hike for Kids & Parents |
| October 26, 2025 |
iNaturalist: A Deep Dive (CANCELED due to inclement weather) |
| October 25, 2025 |
Guided Public Hikes |
