Quick Facts:

  • 27 acres of grassland, wetlands, and oak woodlands along Orr Creek in Auburn
  • Protected by conservation easement since 2007 by Placer Land Trust through the generosity of Leslie Warren

Oak Woodlands, Orr Creek, and a Wetland Meadow

The Warren Property hosts open grassland, seasonal wetlands, mixed oak woodlands, and a riparian corridor along Orr Creek, a tributary to Raccoon Creek.

Protecting a “Sense of Place”

The Warrens purchased this property with the help of a neighbor in the early 1990s to save it from a development scheme that would have built 67 houses on the land. The conservation easement prohibits development and harmful activities such as grading, dumping, and mining, while allowing the Warrens to continue to use portions of the property for agricultural use.

Oak Woodlands

Healthy oak woodlands can moderate temperature extremes, reduce soil erosion, and sustain water quality, thereby supporting the richest diversity of wildlife species abundance over any other habitat type in California. Approximately 331 species of wildlife inhabit Placer County’s oak woodlands.

Riparian Habitat

The seasonally wet meadow and the riparian corridor, in addition to the oak woodlands, further enhance the Property’s biodiversity. Wetland areas and riparian zones provide critical habitat for a wide range of terrestrial and aquatic species while also contributing to water quality by filtering excessive nutrients and other pollutants before the water reaches the stream.

Warren Preserve is not open to the public. For a list of our properties that have public trails, visit our Trails page.