USGS Streamgage 09371000
Mancos River near Towaoc, CO
Mancos River near Towaoc, CO is USGS streamgage 09371000 in Colorado, monitoring river discharge in hydrologic subbasin 14080107. It drains a watershed of about 526 square miles. Discharge records at this site go back to 1921. Typical flow runs near 2.7 cfs in July and 72.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Colorado
- Drainage area
- 526 sq mi
- Gauge elevation
- 5,052 ft
- Subbasin (HUC-8)
- 14080107
- Coordinates
- 37.0275, -108.74149
- USGS site number
- 09371000
- Records begin
- 1921-04-01 (105 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 105 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 2.9 | 10.4 | 22.1 | |
| February | 7 | 17.1 | 48.8 | |
| March | 8.6 | 33.1 | 121.9 | |
| April | 3 | 72.4 | 289.6 | |
| May | 0.3 | 94.8 | 403.1 | |
| June | 0 | 22.6 | 222.7 | |
| July | 0 | 2.7 | 80.2 | |
| August | 0 | 4.3 | 60.3 | |
| September | 0 | 7.7 | 60.3 | |
| October | 0.4 | 11.5 | 49.7 | |
| November | 2.7 | 12.6 | 34.1 | |
| December | 2.4 | 10 | 23.9 |
All values in cubic feet per second (cfs).