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<br />Los Pinos River near Ortiz, Colo.
<br />
<br />Location.--Water-stage recorder, lat 36058'56", long 106004'23", in New Mexico on line between
<br />sees. 26 and 27, T. 32 N., R. 8 E., on left bank 0.9 mile south of New Mexico-Colorado State line,
<br />2.1 miles southwest of Ortiz, and 2.9 miles upstream f~om mouth. Altitude of gage is 8,040 ft.
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<br />Drainaqe area.--167 sq mi.
<br />Averaqe discharqe.--62 years (1915-20, 1925-80), 120 ft3/s (86,940 acre-ft per year).
<br />Extremes.--1915-20, 1925-80: Maximum discharge, 3,160 ft3/s May 12, 1941 (gage height, 5.77 ft,
<br />site and datum then in use), from rating curve extended above 1,600 ft3js; minimum observed,
<br />4.0 ft3js Dec. 17, 1945.
<br />
<br />Remarks.--Records good except those for winter months, which are fair. Diversions above station
<br />for irrigation.
<br />
<br />Monthly and yearly discharge, in cubic feet per second
<br />
<br /> Month Second- Maximum Minimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 444 17 11 14.3 881
<br />February 579 26 15 20.0 1,150
<br />March 641 25 16 20.7 1,270
<br />April 3,303 382 18 110 6,550
<br />May 24,955 1,340 309 805 49,500
<br />June 22,468 1,150 312 749 44,570
<br />July 3,436 326 34 111 6,820
<br />Augus t 790 33 17 25.5 1,570
<br />September 528 33 11 17.6 1,050
<br />October 491 23 12 15.8 974
<br />Novembe r 551 24 15 18.4 1,090
<br />December 543 22 14 17.5 1,080
<br />Calendar year 1980 58,729 1,340 11 160 116,500
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<br />Conejos River near Lasauses, Colo.
<br />
<br />Location.--water-stage recorders lat 37018101", long 105044'47", in sees. 2 and 11 (two channels),
<br />T. 35 N., R. 11 E., on left bank of main channel 125 feet downstream from bridge on State
<br />Highway 158 and on left bank of secondary channel 230 ft upstream from bridge, 1.0 mile upstream
<br />from mouth, and 2.1 miles north of Lasauses. Datum of gage on main channel is 7,495.02 ft and
<br />on secondary (south) channel is 7,496.89 ft above mean sea level (levels by BUreau of Reclamation).
<br />
<br />Drainaqe area.--887 sq mi.
<br />AveraQe discharqe.--59 years (1922-80) , 182 ft3js 1131.900 acre-ft per year) .
<br />Extremes.--1921-80: Max imum discharge, 3,890 ft3js May 15, 1941; no flow at times in some years.
<br />Remarks.--Records good except those for winter months, which are fair. Diversions for irrigation of
<br />about 75,000 acres abOVe station.
<br /> Monthly and yearly discharge, in cubic feet per second
<br /> Month Second- Max imum Minimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 1,488 64 32 48.0 2,950
<br />February 1,939 99 48 66.9 3,850
<br />March 2,690 98 76 86.8 5,340
<br />April 10,938 1,166 68 365 21,700
<br />May 35,879 1,510 692 1,157 71,170
<br />June 34,325 1,550 722 1,144 68,080
<br />July 12,371 965 136 399 24,540
<br />August 3,941 289 18 127 7,820
<br />September 511.6 126 7.1 17.1 1,010
<br />October 350.0 14 7,7 11. 3 694
<br />November 865 56 14 28.8 1,720
<br />Decembe r 1,631 64 33 52.6 3,240
<br />Calendar year 1980 106,928.6 1,550 7,1 292 212,100
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