USGS Streamgage 09112500
East River at Almont, CO
East River at Almont, CO is USGS streamgage 09112500 in Colorado, monitoring river discharge in hydrologic subbasin 14020001. It drains a watershed of about 289 square miles. Discharge records at this site go back to 1910. Typical flow runs near 445.9 cfs in July and 215.1 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 289 sq mi
- Gauge elevation
- 8,019 ft
- Subbasin (HUC-8)
- 14020001
- Coordinates
- 38.66444, -106.8475
- USGS site number
- 09112500
- Records begin
- 1910-10-01 (116 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 116 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 | 47.3 | 62.1 | 80 | |
| February | 46.6 | 59 | 74.2 | |
| March | 48.2 | 62.5 | 104.1 | |
| April | 101.9 | 215.1 | 492 | |
| May | 433.9 | 912.9 | 1,682.9 | |
| June | 542.6 | 1,217.6 | 2,247.7 | |
| July | 167.2 | 445.9 | 1,025.9 | |
| August | 108.6 | 196.1 | 363.9 | |
| September | 62.9 | 114.1 | 208.5 | |
| October | 67.6 | 100.7 | 179.2 | |
| November | 69 | 89.8 | 128.8 | |
| December | 53.5 | 71.4 | 97.3 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- East River Number 1 Ditch above Roaring Judy Hatchery, CO
- East River Number 1 Ditch Flume 2 above Hwy 135, CO
- East River Number 1 Ditch Flume 1 above Hwy 135, CO
- Slide Ditch Flume below Hwy 135 near Crested Butte, CO
- Slate River Ab Baxter Gl @Hwy 135 near Crested Butte, CO
- Taylor River above Trail Creek near Taylor Park, CO
- Taylor River at Taylor Park, CO
- Texas Creek at Taylor Park, CO