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<br />Los Pinos River near Ortiz, Colo.
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<br />CLoeation.--Water-stage recorder, lat 36058', long 106003', in New Mexico in N~ sec. 34,
<br />T. 32 N., R. 8 E., on left bank 1 mile south of New Mexico-Colorado State line, 2 miles
<br />southwest of Ortiz, and 22 miles upstream from mouth. Altitude of gage is 8,100 ft.
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<br />Drainage area.--167 sq mi.
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<br />Average diseharge,--43 years (1915-20, 1925-61), 126 cfs (91,220 acre-ft per year).
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<br />Extremes.--1915-20, 1925-61: Maximum discharge, 3,160 cfs May 12, 1941 (gage height,
<br />5.77 ft, site and datum then in use), from rating curve extended above 1,600 efs;
<br />minimum observed, 4.0 efs Dec. 17, 1945.
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<br />Remarks.--Records good except those for winter months, which are fair. Diversions above
<br />station for irrigation.
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<br /> Monthly and_ yearly dischar.J2:e, in cubic eet per secon
<br /> Second- Maximum Minimum Runoff
<br /> Month Mean in
<br /> foot-days daily daily Acre-feet
<br /> 279 9 9 9 553
<br />January . 336 12 12 12 666
<br />February , 772 45 15 24.9 1,530
<br />March. 9,111 887 28 304 18,070
<br />April. , 18,204 1,050 348 587 36,110
<br />May. , 5,279 388 63 176 10.470
<br />June 1.089 74 17 35.1 2.160
<br />July 1.199 66 17 38.7 2,380
<br />August , 1.343 188 18 44.8 2,660
<br />September. 1.OS8 59 23 34.1 2,100
<br />October. 940 50 20 31.3 1,860
<br />November , 535 25 11 17.3 1.060
<br />December
<br />Cale~ar year 1.::00-1.. . 4~,l45 1.050 9 110 79.620
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<br />ConeJos River near La Sauses, Colo.
<br />Location.--Water-stage recorders, lat 37018', long 105045', in sees. 2 and 11 (two
<br />channels), T. 35 N., R. 11 E., on left bank of main channel 100 ft downstream from
<br />bridge on State Highway 158 and on right bank of secondary channel 130 ft downstream
<br />from bridge, half a mile upstream from mouth, and 2 miles north of La Sauses. Datum of
<br />gage on main channel 1s 7,495.02 ft and on secondary (south) channel is 7,495.89 ft
<br />above mean sea level (levels by Bureau of Reclamation).
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<br />Drainage area.--887 sq mi.
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<br />Average discharge.--40 years (1922-61),198 cfs (143,300 acre-ft per year).
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<br />Extremes.--1921-61: Maximum discharge, 3,890 cfs May 15, 1941; no flow at times in
<br />1934, 1948, 1950-51, 1953-56, 1958-61,
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<br />Remarks.--Records fair above 10 cfs and poor below. Diversions for irrigation of about
<br />/5,000 acres above station.
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<br /> Monthly and year1.Y d Be arge, n eu e ee per Becan
<br /> Second_ MaXimum Minimum RUnoff
<br /> Month Mean in
<br /> foot-days daily da lly Acre-feet
<br />January. 1,209 47 33 39.0 2,400
<br />February , , 1.629 77 48 58.2 3,230
<br />March. , 1,736 90 44 56.0 3,440
<br />April. . 6.921 783 44 231 13,730
<br />May. lS,953 1,150 206 515 31,640
<br />June 2,637.8 586 3,3 87.9 5,230
<br />July 101.1 9,2 ,1 3.26 201
<br />August , 2.6 .5 0 .08 5,2
<br />September. , 229.9 38 ,4 7.66 456
<br />October. 774.1 55 7,2 2S.0 1,540
<br />November 4.440 556 69 148 8,810
<br />December 2 468 109 65 79.6 4,900
<br />Calenuar year -I..~61 . 38.101.5 l,lS0 U _ 'u, _'b!""U
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