Natural history displays in Oakland, California

Located in Oakland, California, the Huckleberry Botanic Regional Preserve is a stunning ecological gem that showcases a unique native plant community exclusive to the East Bay. This 241-acre park represents a relic plant association that can only be found in certain areas along California's coast with specific soil and climatic conditions. The preserve's vegetation has its roots in past climates and geologic history, originating in the distant past along the southern coast of California. Today, similar vegetation can be found on the islands off the Santa Barbara coast and in isolated pockets along the mainland coast. The rock strata in the preserve contain the remains of microscopic diatoms and radiolaria, creating soil that is low in nutritional value but ideal for pioneering chaparral species.

Sibley Volcanic Regional Preserve is a park and tourist attraction located in Oakland, California, United States. The preserve is known for its unique geological features, including the prominent Round Top peak, which stands at 1,763 feet above sea level. Visitors can explore several trails throughout the preserve, including the East Bay Skyline National Recreation Trail and the Volcanic Trail, which offers a self-guided tour of the area's volcanic history. The preserve was originally called Round Top Park and is one of the East Bay Regional Park District's original parks. It was later named in honor of Robert Sibley, a founding member of the District. Cattle grazing has been a part of the ecosystem in the East Bay hills for many years, helping to reduce wildfire risks and maintain natural habitats for plants and wildlife.