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<br />LOB Pinos River near Ortiz, Colo.
<br />
<br />Location. --Water-stage recorder, lat 36058 I 56", long 106004 r 2311 J in New Mexico on line
<br />between sees. 26 and 27, T. 32 N., R. 8 E., on left bank 0.9 mile south of New Mexlco-
<br />Colorado State line, 2.1 miles southwest of Ortiz, and 2.9 miles upstream from mouth.
<br />Altitude of gage is 8,040 ft.
<br />Dralna~e area.--167 sq mi.
<br />Avera~e dlscharge.--54 years (1915-20, 1925-72), 121 crs (87,660 acre-ft per year),
<br />
<br />Extremes.--1915-2D, 1925-72:
<br />ft, site and datum then 1n
<br />observed, 4.0 ers Dec. 17.
<br />
<br />Maximum discharge, 3,160 ers May 12, 1941 (gage height, 5.77
<br />use), from rating curve extended above 1,600 efs; minimum
<br />1945.
<br />
<br />Remarks.--Records good except those for winter months, which are rair. Diversions above
<br />station ror irrigation.
<br />
<br />Monthly and yearly discharge, in cubic feet per second
<br />
<br /> Second- Maximum Minimum Runoff' in
<br />Month foot-days daily daily Mean Acre-f'eet
<br />January 522 21 12 16,8 l,OlJa
<br />February 522 27 12 18.0 1,OlJO
<br />March 2,374 118 26 76.6 4,710
<br />April 4,893 284 56 163 9,710
<br />May 4,368 181 101 141 8,660
<br />June 1,777 123 20 59.2 3,520
<br />July 560 24 12 18.1 1,110
<br />August 369.4 17 9.6 11.9 733
<br />September 358.0 32 7.6 11.9 710
<br />October 1,338 195 10 43.2 2,650
<br />November 999 52 23 33.3 1,980
<br />December 672 25 18 21. 7 1,330
<br />Calendar year 1972 18,752,4 284 7.6 51.2 37,200
<br />
<br />Conejos River near Lasauses, Colo.
<br />Location. --Water-stage r'ecorders, 1at 37018 I 01 n, long 1050 J.j.lp ~7", in sees. 2 and 11 (two
<br />channels), T. 35 N.! R. 11 E., on left bank of main channel 125 f't downstream from bridge
<br />on State Highway 15~ and on left bank of secondary channel 230 ft upstream from bridge,
<br />1.0 w.ile upstream from Mouth, and 2.1 miles north of' Lasauses. Datum of gage on main
<br />channel 1s 7.lJ95.02 ft and on secondary (south) channel is 7,496.89 ft above mean sea
<br />level (levels by Bureau of Reclamation).
<br />Drainage area.--887 sq mi.
<br />Avera~e discharge.--51 years (1922-72), 182 crs (131,900 acre-ft per year).
<br />Extremes.--192l-71: Maximum discharge, 3,890 cf's May 15, 1941; no flow at times in some
<br />years.
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<br />Remarks.--Records good except those for winter months, which are poor. Diversions for
<br />irrigation of about 75,000 acres above station.
<br />Monthly and yearly discharge, in cubic feet per second
<br />
<br /> Secona- fl-1aximum Minimum Runofr in
<br />Nonth foot-days daily daily Mean Acre-feet
<br />January 2,360 102 56 76.1 4,680
<br />February 2,573 144 58 88.7 5,100
<br />March 4,679 290 41 151 9,280
<br />April 346.35 42 .61 11.5 687
<br />May 42.94 3,6 .34 1. 39 85
<br />June 49.80 2.6 .26 1. 66 99
<br />July .83 ,26 0 .027 1.6
<br />August 0 0 0 0 0
<br />September .77 .20 0 .026 1.5
<br />October 257.23 99 .02 8.30 510
<br />November 3,657.3 322 9.3 122 7,250
<br />December 2,503 95 71 80.7 4,960
<br />Calendar year 1972 16,470.22 322 0 45.0 32,670
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