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<br />35
<br />
<br />Los Pinos River near Ortiz, Colo.
<br />~ Location.--Water-stage recorder, lat 36Q58'. long 1060031, in New Mexico in N~ sec. 34,
<br />Lr' T. 32 N., R. 8 E., on 1ef~ 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.
<br />cr) Drainage area.--167 sq mi.
<br />C>
<br />c:) Average dischar~e.--42 years (1915-20, 1925-60), 126 cfs (91,220 acre-ft per year).
<br />Extremes.--1915-20, 1925-60: 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.
<br />Remarks.--Records good except those for winter months, which are fair. Diversions above
<br />station for irrigation.
<br />
<br /> Monthlv and vearlv dlschar~eJ in cubic feet per second
<br /> Second- Maximum Minimum Runoff
<br />Month Mean in
<br /> foot-days da ily daily Acre-feet
<br />January. 403 - - 13 799
<br />February 348 - - 12 690
<br />March. 1,404 165 - 45.3 2,780
<br />April . 13,952 821 70 465 27,670
<br />May. 12,577 700 215 406 24,950
<br />June 6,734 - 396 59 234 13,360
<br />July 1,179 eo 21 38.0 2,340
<br />August 467.5 27 8.5 15.1 927
<br />September. 310.0 16 7.0 10.3 615
<br />October. 523.0 26 9.5 16.9 1,040
<br />November 427.0 29 8.0 14-.2 847
<br />December 372 - - 12 73B
<br />Calendar year 1960 38 696.5 821 7.0 106 76 760
<br />
<br />Conejos River near La Sauses, Colo.
<br />
<br />Location.--Water-stage recorders, lat 370181, long 1050451, 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 is 7,4~5.02 ft and on secondary \South) channel is 7,495.89 ft
<br />above mean sea level (levels by Bureau of Reclamation.
<br />
<br />Drainage area.'-887 sq mi.
<br />
<br />Average discharge.--39 years (1922-60), 200 cfs (144,800 acre-ft per year).
<br />
<br />Extremes.--1921-60: Maximum discharge, 3,890 cfs May 15, 1941; no flow at times in
<br />1~34, 1948, 1950-51, 1953-56, 1958-60.
<br />
<br />Remarks.--Records fair above 10 cfs and poor below. Diversions for irrigation of about
<br />75,000 acres above station.
<br />
<br /> Month1v and vear1v discharlZe in cubic feet oer second
<br /> Second- Maximum Minimum Runoff
<br /> Month Mean in
<br /> foot-days daily daily Acre-feet
<br />January. . 1,668 61 46 53.8 3,310
<br />February 1,701 70 52 58.7 3,370
<br />March. . 3,871 326 5S 125 7,680
<br />ApriL 17,179 1,170 100 573 34-,070
<br />May. 5,274- 366 15 170 10,460
<br />June 11,74-8.9 904 4.4 392 23,300
<br />July 293.7 71 .3 9.4-7 5B3
<br />August . . 14-.2 1.2 0 .46 28
<br />September. . . . B.l 1.2 0 .27 16
<br />October. . 128.4- 10 1.0 4-.14- 255
<br />November 3,975 5S4 11 132 7,880
<br />December 1 045 40 28 33.7 2 070
<br />Calendar year 1960' . 46,906.3 1,170 0 128 93,020
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