On March 2, 1938, Southern California experienced a major flood, which equalled or exceeded any previous flood of record. Most recent figures made available through the courtesy of the United States Engineer Office at Los Angeles show that as a result of this flood 87 lives were lost and property was damaged to the extent of 79 million dollars. I would like to present to this meeting some of the rainfall‐ and runoff‐data pertaining to this flood as it has been collected by the Los Angeles County Flood Control Distr