Nationally recognized Bay Area architect, Lawrence Halprin, died Oct. 25 of natural causes at the age of 93. Among his best-known works are: the 52-acre base of Yosemite Falls, the Franklin Delano Roosevelt Memorial in Washington, D.C.; Freeway Park in Seattle; Marin General Hospital in Novato; Sea Ranch in Sonoma; Ghirardelli Square, Stern Grove, Embarcadero Plaza, the U.N. Plaza on Market Street and Levi's Plaza on Battery Street in San Francisco. Mr. Halprin also served on the National Council on the Arts and the Advisory Council on Historic Preservation. He received a gold medal from the American Society of Landscape Architects in 1978 and a Presidential Design Award for the FDR Memorial in 2000. He wrote several books and filmed an award-winning documentary on Salvador Dali. Mr. Halprin was a resident of Kentfield for 50 years and is survived by his wife, Anna, two daughters, Daria and Rana of Mill Valley, and four grandchildren.