Atascadero Creek Marsh Ecological Reserve was designated as an ecological reserve by the Fish and Game Commission in 1998. Atascadero and Green Valley Creeks are a well-formed riparian waterway system that spreads out in a relatively flat basin forming a mix of seasonal and permanent wetlands with riparian woodland as the dominant historic overstory. This 44 -cre wetland property receives heavy use by shore and wading birds and other water-related species. Seasonal migrations of passerine birds fill the riparian canopies and many raptorial species are local nesters. Deer, raccoons, squirrels, rabbits, and other mammals are present and depend upon the maintenance of this habitat for survival.
For more information, call the Bay Delta Region Napa office at (707) 944-5500.