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<br />LC1cation.--Water-stage recorder, lat 37041'20", long 106o:!7'30", in NWi sec.29, T.40 N., R.5 E., on right bank,
<br />,,-20 it downstream from county highway bridge, 5 miles upstream from Pinos Creek, and 6 miles west of Del
<br />"'-Norte. Datum of gage is 7,980.25 ft above mean sea level, datum of 1929. Prior to May 16, 1908, staff gage
<br />at site 4 miles downstream. Records are equivalent.
<br />
<br />STREAM FLOW
<br />
<br />Rio Grande near Del Norte, Colo.
<br />
<br />Drainag:e area. - -1, 320 sq mi, approximately.
<br />
<br />Averap;e discharg-e. --73 years (1890-1962) 922 cis (667,500 acre-ft per year).
<br />
<br />Extremes.--1889-1962: Maximum discharge, 18,000 cis Oct. 5, 1911 (gage height, 6.80 ft), from rating curve
<br />extended above 6,000 cfs; minimum daily, 69 cis Aug. 21, 1902.
<br />
<br />Remarks.--Records excellent except for BOrne winter months, which are fair. Flow regulated by four large reser-
<br />voirs, total capacity 1.26,100 acre-ft, and by several smaller ones. Six transmountain diversions import water
<br />into basin above station.
<br />
<br /> Monthlv and vearlv di ch!llrv,," in cubic fe t n,.,. soPcond
<br />Month Second- Maximum Minimum -Mean Runoff in
<br />foot-days daily dally Acre-feet
<br />January 6,510 210 210 210 12,910
<br />February. 6,300 225 225 225 12,500
<br />March . 8,233 443 208 266 16,330
<br />April. 41,427 2,520 359 1,381 82,170
<br />May. 96,780 4,390 2,060 3,122 192,000
<br />June. 101,320 4,180 2,300 3,377 201,000
<br />July. 58,520 2,860 1,320 l,88a 116,100
<br />August . 31,502 1,470 347 1,016 62,480
<br />September 9,422 407 237 314 18,690
<br />October 10,151 425 253 327 20,130
<br />November 6,981 313 159 233 13,850
<br />December 5,128 221 110 165 10,170
<br />,..~ ... . ."or I 382 274 4390 110 1047 758 300
<br />
<br />Canejos River below Platoro Reservoir, Colo.
<br />
<br />Location. --Water-stage recorder and concrete control, lat 37"21'20", long 106"32'35", in NWtNWi sec.22, T.36 N.,
<br />R.4 E., on left bank 1,500 ft downstream from valve house for Platoro Reservoir and half a mile northwest of
<br />Platora. Datum of gage Is 9,866.60 ft above mean sea lev.el (levels by Bureau of Reclamation).
<br />
<br />DrainaKe area. --40 sq mi, approximately.
<br />
<br />Average discharg-e. --10 years (1953-62) 85.7 cfs (62,040 acre-ft per year).
<br />
<br />Extremes.--1952-62: Maximum diSCharge, 1,160 ets Nov. 1, 1957; maximum gage height, 4.29 ft June 15, 1958; no
<br />flow Oct. 16-20, 1955.
<br />
<br />Rernarks.--Records good except those for winter months, which are poor. No diversions above station. Flow
<br />completely regulated by Platoro Reservoir (capaCity, 60,000 acre-it).
<br />
<br /> Monthlv and vear Iv discharlle in cubic feet Der second
<br />Month Second- Maximum Minimum Mean Runoff in
<br />loot-days dally dally Acre-feet
<br />January 372 12 12 :12 738
<br />February . 336 12 12 12 666
<br />March 372 12 12 12 738
<br />April. 1,358 187 12 45.3 2,690
<br />May 7,149.8 468 9.8 231 14,180
<br />June. 14,330 630 267 478 28,420
<br />July 4,463 340 30 144 8,850
<br />August 1,095 55 11 35.3 2,170
<br />September 206.3 7.8 6.4 6.88 409
<br />October . 895.8 107 7.8 28.9 1,780
<br />November 6,606 665 12 220 13,100
<br />December 372 12 12 12 738
<br />Calendar vear 1962 37,555.9 665 6.4 103 74,480
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