USGS Streamgage 12323670
Mill Creek near Anaconda, MT
Mill Creek near Anaconda, MT is USGS streamgage 12323670 in Montana, monitoring river discharge in hydrologic subbasin 17010201. It drains a watershed of about 40 square miles. Discharge records at this site go back to 2004. Typical flow runs near 44.1 cfs in July and 24.7 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 40 sq mi
- Gauge elevation
- 5,416 ft
- Subbasin (HUC-8)
- 17010201
- Coordinates
- 46.08297, -112.91719
- USGS site number
- 12323670
- Records begin
- 2004-10-01 (22 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 22 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 | 6.4 | 9.4 | 12.5 | |
| February | 6.4 | 9.1 | 12.8 | |
| March | 7.2 | 10.4 | 22.8 | |
| April | 12.4 | 24.7 | 52.8 | |
| May | 44.7 | 91.2 | 167.2 | |
| June | 75.7 | 114.4 | 211.1 | |
| July | 25.5 | 44.1 | 81 | |
| August | 11.5 | 18.7 | 30.8 | |
| September | 8.7 | 13.9 | 23 | |
| October | 9.8 | 14.4 | 19.6 | |
| November | 9 | 13 | 17.2 | |
| December | 6.6 | 10.5 | 14.9 |
All values in cubic feet per second (cfs).