This report contains graphs and tables summarizing basic data collected at five stream monitoring sites in the Mill Creek drainage basin during two major storms in 1975. One of these storms produced the maximum stream discharge for the year on Mill Creek. Rainfall data are presented for four locations within or near the Mill Creek basin. The antecedent precipitation index at the start of each storm is shown for the Crescent City 7 ENE rain gage. The report also includes photographs and two tables that indicate the location and physical properties of those subdivisions of the Mill Creek basin that are upstream from sites selected for synoptic stream monitoring. The physical parameters used to describe this basin and the techniques used to measure those parameters are described in Iwatsubo and others (1975).