The Bolsa Chica Ecological Reserve is located on the coast in western Orange County, California, USA, in the city of Huntington Beach and is separated from the Bolsa Chica State Beach by the Pacific Coast Highway. It is part of the State Ecological Reserves system, managed by the California Department of Fish and Game, and its purpose is to protect the estuarine tidal saltwater marsh habitat, with its resident, threatened and endangered species. The Reserve is a remnant of an ancient coastal wetland, originally 4000 acres in size. The area was once part of the Nieto land grant, and on Nieto's death, his son inherited 8000 acres, 4000 acres of which were coastal wetland. He named this property Rancho La Bolsa Chica, because the bigger lagoon looked like a small purse or pocket - "bolsa chica" meaning small purse in Spanish.
