Tacoma's name is derived from the Native American word "Tahoma," meaning "Mother of the Waters," referring to the shadow of Mt. Rainier that looms over the city. Tacoma's beautiful natural setting affords views of the nearby Cascade Range and the more distant Olympic Mountains. Tacoma is home to a deep-water harbor, among the busiest in the United States, that has played an important role in the city's economic development. Nationally recognized for careful municipal planning, Tacoma has been nicknamed the "City of Destiny." In 2004 Partners for Livable Communities named the Tacoma and Pierce County area one of "America's Most Livable Communities."