The people and public officials of San Francisco have made an effort to take a stand and conserve areas filled with endangered wildlife and/or critical habitat. Out of these efforts, came the birth of The Ellicott Slough National Wildlife Refuge Complex, which is just one of the many parks under the San Francisco Bay national Wildlife Refuge Complex.Ellicott Slough National Wildlife Refuge is located in Santa Cruz County, California within the Monterey Bay area. The Refuge’s main goal is to preserve fish and wildlife to the best of their abilities. There are numerous species that are in critical condition in those parks, they are called Federally-listed Wildlife Species. Some of these species are the long-toed salamander, the California red-legged frog, the California tiger salamander and the robust spine flower. Other than the Federally listed, the refuge is also home to mammals, such as mice, gophers and squirrels to name a few. Ellicott Slough is located in Santa Cruz, California and was established after The California Department of Fish and Game purchased the property from its original owner. Due to the Refuge’s close proximity to the Pacific Ocean, its weather is influenced by marine life. Ellicott Slough NWRC is made up of 4 units. The Ellicott Unit, the Calabasas Unit, the Harkins Slough Unit and the Buena Vista Unit.