Fairfield Osborn Preserve
The 450-acre Fairfield Osborn Preserve lies at the top of Sonoma Mountain overlooking Valley of the Moon to the north and the Santa Rosa Plain to the west. The interaction of atmospheric rivers, steep slopes and a preponderance of rhyolitic rock create a frequent and widespread slumping and landslides throughout the Preserve. The Preserve is bisected by Copeland Creek. Due to the lack of fish in this perennial reach, aquatic invertebrate communities are remarkably diverse. Historic land use includes homesteading, woodcutting, and grazing.
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Visit the Preserve
The Fairfield Osborn Preserve is open to persons of all ages and affiliations undertaking research and educational activities.Reservations are required (see Visit a Preserve). Before your visit, take a virtual tour. Osborn facilities include the Marjorie Osborn Research and Education Center. Planning for an overnight campground is underway.
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