USGS Streamgage 06090500
Belt Creek near Monarch, MT
Belt Creek near Monarch, MT is USGS streamgage 06090500 in Montana, monitoring river discharge in hydrologic subbasin 10030105. It drains a watershed of about 355 square miles. Discharge records at this site go back to 1951. Typical flow runs near 158 cfs in July and 92.4 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 355 sq mi
- Gauge elevation
- 3,975 ft
- Subbasin (HUC-8)
- 10030105
- Coordinates
- 47.20859, -110.93175
- USGS site number
- 06090500
- Records begin
- 1951-05-01 (75 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 75 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 | 9.3 | 25.1 | 44.8 | |
| February | 10.2 | 24.7 | 51.8 | |
| March | 10.5 | 28.2 | 68.2 | |
| April | 31.7 | 92.4 | 281.6 | |
| May | 257.1 | 532.8 | 1,341.5 | |
| June | 245.9 | 493.3 | 1,540.7 | |
| July | 82 | 158 | 411.5 | |
| August | 43.9 | 73.5 | 145.5 | |
| September | 32.7 | 56.2 | 116 | |
| October | 31.2 | 51.1 | 103.7 | |
| November | 23.1 | 41.4 | 76.6 | |
| December | 13.1 | 30.3 | 53.9 |
All values in cubic feet per second (cfs).