Middle Mancos 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 (0)
No warnings.
Context (2)
Show 2 notes
- ended Discontinued gauges: 1 gauge has stopped reporting: Middle Mancos River Near Mancos, CO (last 1951). Their segments rest on fewer gauges after those years.
- flatline Middle Mancos River Near Mancos, CO: 9 runs of 30+ days at exactly the same flow: 1.5 cfs for 59 days from Feb 1, 1942; 10.0 cfs for 31 days from Jul 1, 1941; 2.5 cfs for 31 days from Aug 1, 1941. Usually an estimated period (ice, a broken gauge) rather than measured daily flow.
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 |
|---|---|---|---|---|---|
| Middle Mancos River Near Mancos, CO | Mancos | codwr, usgs | 1938-04-04 | 1951-09-24 | 704 |