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January 25, 2026

Naturalist Ed Series: Amphibians of Osborn Preserve

rough skinned newt

Fairfield Osborn Preserve
Sun, Jan 25, 10:00 am – 1:00 pm

Register Here

Admission Fees: none


Amphibians are indicator species; they are extremely sensitive to environmental changes and require moisture for at least a portion of their life cycle. Therefore, they are more commonly observed during the wet season. So join us during the optimal time of year to learn about these amazing animals that include frogs, toads and salamanders! 

We will explore their natural breeding and upland habitats as we travel through Osborn Preserve. Explore oak woodland, grassland, pond, creek, riparian and other vegetation communities at the preserve to find and observe a wide variety of amphibians. Along the way, we’ll discover interesting observations of these fascinating amphibians, how they are affected by climate, habitat loss and environmental degradation, and what we can do to support the conservation of these amazing animals.

Osborn Naturalists

This event is part of the Naturalist Ed Series, a program that trains participants to become Osborn Naturalists in perpetuity. You can learn more about becoming an Osborn Naturalist to address nature-deficit disorder here, or contact Suzanne Decoursey at [email protected] for more information. No experience required. Must be age 18 years or older.

Leader

University staff, faculty and regional experts

Logistics

The maximum hike is 1.5 mile with a 400-foot elevation gain. The route is dependent on weather.

  • Fairfield Osborn Preserve is a 15-minute drive from Sonoma State University's main campus, on Lichau Road in Penngrove. Driving directions are available here in English and in Spanish.
  • Parking is limited, so please consider carpooling, and park close together. Let us know if you plan to carpool so we can open more registration spots accordingly.
  • The preserve gate will be unlocked 15 minutes prior to the start time of the event. The preserve gate will be locked 15 minutes after the start of the event time. It is not possible to join the event late or to leave the event early.
  • We will meet outside at the Federated Indians of Graton Rancheria Learning Center, which is across the footbridge on the east side of the parking lot.
  • A restroom, sink for hand-washing, and potable water are available on site.
  • Participants must sign a waiver upon arrival.
  • Must be age 18 years or older.
  • Pets and smoking are not permitted.
  • This is a rain or shine event, though a severe storm may cancel.
  • No previous experience or knowledge is required to participate.

What to Bring

Sturdy footwear for hiking is required. Please bring a backpack, a water bottle, and snacks for the trail. Layered clothing, long pants, toe-covered shoes, rain gear, a hat, sun protection, and insect protection are recommended. Walking sticks may be helpful.

How to Sign Up

See registration link above. Each participant should register separately.

This event is free of charge.

About the Center

Sonoma State University’s Center for Environmental Inquiry empowers university students to work with community members on the environmental challenges of the North Bay. Our mission is to create an engaged and environmentally ready society, one where all people have the skills to find solutions to the challenges facing our earth. SSU Preserves are open to everyone engaged in education or research. Reservations are required.

Contact Email: [email protected]
Contact Phone: 7076644056