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D24 FLOODS OF 1965 IN THE UNITED STATES CANADIAN RIVER TRIBUTARIES Outstanding peak flows occurred on the Canadian River tributaries from the intense storms of June 15 or 17. The peak flow of the Vermejo River near Dawson of 12,600 cfs on June 17 was the greatest discharge since 1927 and was probably higher than that during the flood of 1921. Peak flow into Eagle Nest Lake on Cimarron Creek was about 550 cfs on June 17, and outflow was less than I cfs. Measured tributary contributions to Cimarron Creek for the first 10 miles downstream from the dam totaled only 171 cfs. Flooding on the creek began less than 8 miles upstream from the gaging station near Cimarron. The peak discharge of 15,500 cfs, therefore, was generated in an area of about 30 square miles. Turkey Creek Canyon, which drains 5.25 square miles, contributed over 40 percent of the peak flow. The peak discharge on Cimarron Creek at Springer increased to 29,500 cfs. The Philmont Scout Ranch, about 10 miles southeast of Cimarron, sustained heavy damage, and about 25 city blocks in Springer were partially flooded. Other tributaries to Cimarron Creek also had outstanding peak flows. The peak discharge of 5,630 cfs on Ponil Creek near Cimarron, which destroyed the gaging station, was the greatest since 1915. Flooding in the valley downstream from Chase Canyon, which enters half a mile down- stream from the gaging station on Ponil Creek, was the greatest in at least 80 years, according to a longtime resident. Rayado Creek at Sauble Ranch near Cimarron had a peak flow of 9,000 cfs on June 17. This was nearly five times the maximum discharge for the 54 years of record prior to June 1965 and almost nine times the peak discharge of the 50-year flood. Flooding in the Mora River basin occurred June 15-17. Peak discharges at some stations on the main stem and on some of the tributaries ap- proached or exceeded those of a 50-year frequency. NORTHEASTERN NEW MEXICO Flooding occurred in some areas in extreme northeastern New Mexico near Clayton and Guyon tributaries to the Canadian, Cimarron, and North Canadian Rivers. Travesser Creek near Guy had a peak discharge of 12,500 cfs, or twice that of the 50-year flood. Cieneguilla Creek near Clayton had a peak discharge of 9,580 cfs, or 1.2 times that of the 50-year flood. Clayton Lake on Cieneguilla Creek was filled for the first time since its completion in 1958. EFFECTS OF STORAGE In Colorado the entire flood runoff upstream from John Martin Dam was stored in the reservoir. This was fortunate indeed for communities downstream because of the high peak flows from the tributaries below the dam. Two tributaries entering the Arkansas River within 6 miles down- stream were contributing over 90,000 cfs in the early morning of June 18. At 0630 hours on June 18 the instantaneous inflow to the reservoir was about