Sepulveda Wash Basin Sepulveda Wash Basin. A low spot in the San Fernado Valley, heavy rains in the surrounding countryside and the need to control those rains led to the development of a unique habitat. During the rainy season this area can go from the peaceful scenes you see here to a rain swollen lake with
depths of over 50 ft or more
(Added: 6-Mar-2001 Hits: 386)