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ROARING FORK RIVER BASIN
<br /> 09081600 Crystal River above Avalanche Creek, near Redstone, Colo.
<br /> • LOCATION.--Lat 39'13'SS', long 107"3'35', in SW� sec.33, T.9 S., R.88 W., Pitkin County, on right bank
<br /> 1.2 miles upstream from Avalanche Creek and 3.5 milea north of Redstone.
<br /> DRAINAGE AREA.--167 sq mi.
<br /> PERIOD OF RECORD.--October 1955 to current year.
<br /> GAGE.--Water-stage recorder. Altitude of gage is 6,905 ft (_from river-profile nap).
<br /> AVERAGE DISCHARGE.--15 years, 293 cfs (212.300 acre-ft per year).
<br /> EXTREMES.--Current year: Maximum discharge, 1,980 cfs June 26 (gage height, 4.70 ft); minimum daily, 40 cfs
<br /> Jan. 30.
<br /> Period of record: Maximum discharge, 3,990 cfs July 1, 1957 (gage height, 5.65 ft); minimum daily,
<br /> 22 cfs Dec. 5, 1955, Feb. 15, 1964.
<br /> REPIARKS.--Records good except those for period of no gage-height record, which are fair. A few small diver-
<br /> sions for irrigation above station.
<br /> UISCH4RGE, IN CUBIC FEET PER SECDNO, WATER YEAR OCTORER 1969 TO SEPTEMBER 1970
<br /> DAY OCT NOY DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
<br /> 1 Lis 122 76 55 50 61 49 Ise 1.Z10 1,040 195 2L3
<br /> 2 106 110 76 55 '0 64 48 148 1,150 936 186 204
<br /> 3 130 100 76 55 52 62 50 166 1,300 901 217 155
<br /> 4 125 105 78 50 52 61 48 270 1.400 838 240 140
<br /> 5 122 105 74 48 46 61 53 405 1,300 SIO 201 224
<br /> 6 Ila 106 68 46 52 59 64 526 1.420 761 228 661
<br /> 7 120 108 65 46 50 59 78 598 1,470 922 222 326
<br /> 8 122 110 60 46 4a 64 82 553 11550 803 201 270
<br /> 9 122 L08 60 48 48 64 95 4.60 1.380 754 186 213
<br /> 10 132 104 70 50 48 62 115 436 11290 6d4 ITS I86
<br /> 11 137 101 70 50 50 6Z 130 550 1.120 628 164 164
<br /> 12 130 10L 70 50 55 6. 113 719 943 574 158 169
<br /> 13 127 97 65 49 60 62 99 782 894 520 153 712
<br /> 14 122 93 65 46 55 59 97 189 936 4d4 155 593
<br /> 15 135 88 60 48 55 62 93 740 992 430 ISO 405
<br /> 15 IZT 95 60 50 55 64 84 894 1.030 430 189 314
<br /> 17 132 90 60 50 55 64 90 1.150 1,140 405 140 262
<br /> • 18 145 78 60 50 53 62 99 1.300 I.270 340 16i 2330
<br /> 19 145 72 55 50 45 52 9O 1.421 1.420 380 142 ZI0
<br /> 20 122 82 60 50 45 55 84 1.4 10 1,540 345 175 189
<br /> 21 125 86 60 48 64 59 84 1.590 L,6a0 326 219 178
<br /> 22 125 90 60 48 59 59 73 1.590 L.730 310 195 189
<br /> 23 125 80 65 50 59 59 78 1.620 1.710 350 166 172
<br /> 24 L18 78 60 50 59 64 80 1,620 1.750 298 148 Ise
<br /> 25 122 96 60 46 61 64 106 1.620 1,740 266 135 Ise
<br /> 26 122 85 60 46 59 61 164- 1.620 1.660 276 127 145
<br /> 27 125 75 60 48 59 62 223 1.670 1,570 262 122 k40
<br /> 28 127 70 55 50 61 61 243 1,670 1,620 230 125 13Z
<br /> 29 122 70 50 44 --- 66 198 L,420 1,530 223 120 L30
<br /> 30 120 76 46 40 ----- 53 172 11450 1.230 204 122 125
<br /> 31 113 ----- 50 50 --- 50 ----- 1,440 ----- 201 166 -----
<br /> TOTAL 3,831 2,771 1,954 1,511 1,505 1.878 3,086 30,801 40,975 15,963 15,313 7,372
<br /> MEAN 125 92.4 63.0 48.7 53.3 60:6 103 494 1,366 516 171 246
<br /> MAX 145 122 78 55 64 66 243 1,670 11750 L.040 240 712
<br /> MIN 106 70 46 40 45 50 48 148 894 20L 120 125
<br /> AC-FT 7,700 5,500 3,880 3.000 2.990 3,730 6,I20 61,090 e1,270 31.700 10,540 14,620
<br /> CAL YR 1969 TOTAL 119,779 MEAN 328 MAX 1.730 MIN 38 ACFT 237,600
<br /> WAr YR L370 TOTAL 117,030 MEAN 321 MAX 1,750 MIN 40 ACFT 232,100
<br /> PEAK DISCHARGE (SASE, 2,000 CFS).--lio peak above base.
<br /> NOTE.--No gage-height record Dec. 7 to Feb. 2.
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