The Seattle Art Museum's Olympic Sculpture Park is a nine-acre waterfront park that gives visitors an opportunity to experience sculptures while taking in the views of Puget Sound and the Olympic Mountains. The site was the last piece of undeveloped waterfront property in downtown Seattle. The Seattle Art Museum and the Trust for Public land worked together to obtain the property with the support of the City of Seattle and King County. The park was an industrial fuel facility from the early 1900s until 1975 used for storing, transferring and shipping gasoline and diesel fuels. The cleanup of the site started in the 1990s and took 10 years. Today, the park is an environmental showcase with the runoff-reducing pervious surfaces, the landscaping and the sculpted pocket beach. The objective of the beach is to aid in the recovery of salmon inhabitation in Elliot Bay. The development of the beach involved excavating the existing shoreline and adding 50,000 tons of rock creating sloping shelves which will be replanted with native plants to mimic a saltwater marsh inter-tidal habitat. The hope is that this beach will inspire others to redevelop other waterfront properties in ways that might encourage a return to a more natural ecosystem in Elliot Bay.