American Canyon Research Natural Area Establishment Record

The American Canyon Research Natural Area (ACRNA) is characterized by the presence of Coulter pine forest, northern mixed chaparral, Central Coast live oak riparian forest, and valley needlegrass grassland. Seven plant species found within the area are listed by the California Native Plant Society as rare, threatened, endangered, or of limited distribution; one of these is a forest sensitive species. Most of the vegetation in the ACRNA burned in 1939. The patches left untouched by this fire had burned in previous fires in 1921 and 1926.