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<br />Los Pinos River Hear Ortiz, Colo.
<br />
<br />Location. -- Water-stage recorder, lat 36"58', long 106'03". in New Mexico in N~ sec. 34, T. 32 N., R. 8 E.,
<br />on left bank 1 mile south of New Mexi<o-Colorado State line, 2 miles southwest of Ortiz, and 2~ miles
<br />upstream from mouth. Altitude of gage is 8, 100 ft.
<br />
<br />Drainage area. -- 167 sq mi.
<br />
<br />Average discharge. -- 51 years (1915-20, 1925-69), 124 cfs (89. 770 acre-It per year),
<br />
<br />Extremes. h 1915-20. 1925-69: Maximum discharge, 3, 160 cfs May 12, 1941 (gage height, 5.77 ft, site and
<br />datum then in use), from rating curve extended ah ove 1,600 cfs; minimum observed. 4.0 cfs Dec. 17, 1945.
<br />
<br />Remarks. -- Records good except those for winter months, which are fair. Diversion above station for irrigation.
<br />
<br />Monthly and yearly discharge. in cubic feet per second
<br />
<br />Month I Second_ Maximum Minimum Mean Runoff in
<br />foot-dayS daily daily Acre-feet
<br />January. I 550 - - 17.7 1,090
<br />February 505 I - I - 16.0 1,000
<br />March 643 . - 20,7 1,280
<br />April 6,388 I 572 I 39 213 12,670
<br />May 21,645 i 942 399 698 42,930
<br />June 9, 534 584 I 139 318 18,910
<br />July 2,873 I 133 58 92.7 5,700
<br />August 2.188 220 1 34 70.6 4,340
<br />September 1,154 112 26 38.5 2,290
<br />October 1,914 112 27 J 61.7 3,800
<br />November I 1,323 75 16 44. I 2,620
<br />December 822 - - 26.5 1,630
<br />Calendar year 1969 49, 539 942 - -' 136 98. 260
<br />
<br />Conejos River near La Sauses, Colo.
<br />
<br />Location.--Water_stage recorders, lat 37"18', long 105045'. in secs. 2 and 11 (two channels), T. 35 N., R. II E..
<br />on left bank of main channel 100 ft downstream from bridge on State Highway 158 and on right bank of secondary
<br />channel 130 ft downstream from bridge, half a mile upstream from mouth. and 2 miles north of La Sauses.
<br />Datum of gage on main channel is 7, 495. 02 ft and on secondary (south) Channel is 7, 495. 89 ft ahove mean sea
<br />level (levels by Bureau of Reclamation).
<br />
<br />Drainage area. -- 887 sq mi.
<br />
<br />Average discharge. -- 48 years (1922-69), 188 cis (136.200 acre-It per year).
<br />
<br />Extremes. --1921-69: Maximum discharge, 3,890 cfs May 15, ]941; no flow at times in 1934. 1948, 1950-51,
<br />1953-56, 1958-64, 1966-67.
<br />
<br />Remarks. --Records fair above 10 cfs and pOOr below. Diversions for irrigation of about 75,000 a<res above
<br />station.
<br />
<br />Monthly and yearly discharge. in cubic feet per second
<br />
<br />Month Second_ Maximum I Minimum Mean Runoff in
<br /> foot-days daily daily Acre.feet
<br />January 2,684 106 72 86. 6 5,320
<br />February 2,554 105 70 91. 2 5,070
<br />March . 2.949 I 126 63 I 95. 1 5,850
<br />April 6.008 I 541 61 200 11, 920
<br />May 18.259 988 277 589 36, 220
<br />June. 18.030 I 1.460 151 601 35,760
<br />July. 5,831 301 84 188 11,570
<br />August 4,622 I 435 49 149 9,170
<br />September 3,497 246 44 117 6,940
<br />October 8,644 377 150 279 17,150
<br />November . 7,753 522 127 258 15,380
<br />December 4,204 176 99 136 8,340
<br />Calendar year 1969 85,035 l.460 44 233 168,700
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<br />35
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