The Donald and Sylvia McLaughlin Natural Reserve is one of few sites in California that protects unusual serpentine habitats. Chemically hostile to most plants, serpentine deposits cover one third of the reserve, creating islands that support rare and endemic plants, which have adapted to these harsh soils, and numerous associated endemic insects. Where there are nonserpentine soils, the vegetation shifts suddenly to more typical coast range habitats, including riparian woodland, blue oak woodland and savannah, grassland, and chaparral. The reserve is managed by UC Davis and owned in part by the university and Homestake Mining Company. Adjacent lands are owned by the U.S. Bureau of Land Management (BLM), California Department of Fish and Game (DFG), and the Homestake Mining Company. Homestake is in the process of decommissioning an innovative open-pit gold mine which includes extensive reclamation of disturbed lands. The reserve is the repository of over 20 years of environmental monitoring data collected by Homestake.