Animas River
Streamflow, conditions and background by watershed segment. Data through November 1, 2026.
Data gaps and disparities
Found automatically in the gauge records behind this river, and notes from a reviewer who checked them against other sources. Gauges need at least 26 weeks of daily data to appear on the Flow tab.
Warnings (5)
- warning: gap Animas River Above Tacoma, CO: 4 gaps of 60+ days inside the record (18,655 days in all). Longest: Oct 1, 1956 to Jul 31, 2006 (18,201 days); Nov 1, 2007 to Mar 31, 2008 (152 days); Nov 1, 2006 to Mar 31, 2007 (151 days).
- warning: gap Animas River At Durango, CO: 5 gaps of 60+ days inside the record (4,931 days in all). Longest: Oct 1, 1900 to Dec 31, 1911 (4,109 days); Oct 1, 1898 to Sep 30, 1899 (365 days); Jan 1, 1927 to Sep 30, 1927 (273 days).
- warning: gap Animas River At Farmington, NM: 2 gaps of 60+ days inside the record (3,652 days in all). Longest: Oct 1, 1914 to Sep 30, 1919 (1,826 days); Oct 1, 1925 to Sep 30, 1930 (1,826 days).
- warning: flatline Animas River At Howardsville, CO: 25 runs of 30+ days at exactly the same flow: 22.0 cfs for 62 days from Dec 1, 1935; 11.0 cfs for 42 days from Jan 31, 2013; 12.0 cfs for 38 days from Feb 2, 1975. Usually an estimated period (ice, a broken gauge) rather than measured daily flow; the recent run may be a stuck sensor.
- warning: gap Animas River At Silverton, CO: 1 gap of 60+ days inside the record (365 days in all). Longest: Oct 1, 1993 to Sep 30, 1994 (365 days).
Context (6)
Show 6 notes
- flatline Animas River Above Tacoma, CO: 3 runs of 30+ days at exactly the same flow: 240.0 cfs for 31 days from Oct 1, 1945; 125.0 cfs for 31 days from Dec 1, 1945; 190.0 cfs for 30 days from Nov 1, 1945. Usually an estimated period (ice, a broken gauge) rather than measured daily flow.
- flatline Animas River At Durango, CO: 20 runs of 30+ days at exactly the same flow: 150.0 cfs for 59 days from Jan 1, 1918; 350.0 cfs for 31 days from Dec 1, 1897; 250.0 cfs for 31 days from Jan 1, 1898. Usually an estimated period (ice, a broken gauge) rather than measured daily flow.
- copy disagree Animas River At Farmington, NM: The usace_cwms copy agrees on the median but differs by more than 10% on 26% of 7,783 shared days (often provisional vs approved data, or a different daily averaging window). The report does not use usace_cwms for this gauge.
- flatline Animas River At Farmington, NM: 1 run of 30+ days at exactly the same flow: 250.0 cfs for 46 days from Jan 1, 1923. Usually an estimated period (ice, a broken gauge) rather than measured daily flow.
- flatline Animas River At Silverton, CO: 1 run of 30+ days at exactly the same flow: 24.6 cfs for 56 days from Dec 19, 2011. Usually an estimated period (ice, a broken gauge) rather than measured daily flow.
- copy disagree Animas River Near Cedar Hill, NM: The usace_cwms copy agrees on the median but differs by more than 10% on 40% of 7,797 shared days (often provisional vs approved data, or a different daily averaging window). The report does not use usace_cwms for this gauge.
Values removed (0)
A reading is removed automatically only when it is impossible (for example, a daily mean above the highest flow USGS recorded that water year). Low and zero flows are never removed: rivers here really do dry up.
None.
Gauges
Each row is one physical gauge; "published by" lists every agency copy that was merged into it.
| Gauge | Segment | Published by | First | Last | Weeks |
|---|---|---|---|---|---|
| Animas River At Silverton, CO | Animas | codwr, usbr_hydrodata | 1991-09-30 | 2026-10-26 | 1779 |
| Animas River Below Silverton, CO | Animas | codwr, usbr_hydrodata | 1991-09-30 | 2026-10-26 | 1831 |
| Animas River Above Tacoma, CO | Animas | codwr, usbr_hydrodata | 1945-10-01 | 2026-10-26 | 1566 |
| Animas River At Howardsville, CO | Animas | codwr | 1935-09-30 | 2026-10-26 | 4753 |
| Animas River At Durango, CO | Animas | codwr, nwps, usace_cwms, usbr_hydrodata, usgs | 1897-10-04 | 2026-10-26 | 6025 |
| Animas River Blw Durango Pump Plant Nr Durango, CO | Animas | codwr, usbr_hydrodata, usgs | 2008-03-24 | 2026-10-26 | 971 |
| Animas River Near Cedar Hill, NM | Animas | codwr, nwps, usace_cwms, usbr_hydrodata, usgs | 1933-10-30 | 2026-10-26 | 4853 |
| Animas River Below Aztec, NM | Animas | nwps, usgs | 2002-12-16 | 2026-10-26 | 1246 |
| Animas River At Farmington, NM | Animas | nwps, usace_cwms, usbr_hydrodata, usgs | 1913-09-29 | 2026-10-26 | 5379 |
| Animas River At Penny Lane Near Flora Vista, NM | Animas | usbr_hydrodata, usgs | 2019-12-16 | 2026-10-26 | 359 |