USGS Streamgage 09177000
San Miguel River at Uravan, CO
San Miguel River at Uravan, CO is USGS streamgage 09177000 in Colorado, monitoring river discharge in hydrologic subbasin 14030003. It sits on the San Miguel River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,500 square miles. Discharge records at this site go back to 1954. Typical flow runs near 266.9 cfs in July and 518.2 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Colorado
- Drainage area
- 1,500 sq mi
- Gauge elevation
- 4,998 ft
- Subbasin (HUC-8)
- 14030003
- Coordinates
- 38.35721, -108.71287
- USGS site number
- 09177000
- Records begin
- 1954-08-01 (72 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for San Miguel River at Uravan, CO. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 10.3 | 11.6 | 13.1 | ||
| 8.7 | 11 | 14.3 | ||
| 8 | 11 | 15.9 | ||
| 8.8 | 15 | 49.4 | ||
| 10.2 | 23.5 | 100 | ||
| 14.3 | 48.5 | 272 | ||
| 16.3 | 63.3 | 266 | ||
| 16.4 | 51.4 | 168 | ||
| 15.3 | 42.5 | 126 | ||
| 13.8 | 34.8 | 94 | ||
| 12.5 | 29.1 | 70.6 | ||
| 11.2 | 24.9 | 58.6 | ||
| 9.9 | 22.1 | 50.8 | ||
| 8.7 | 19.4 | 43.1 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 72 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 | 50.1 | 78.4 | 125.6 | |
| February | 58.2 | 92.8 | 146.2 | |
| March | 67.3 | 131.3 | 385.6 | |
| April | 139.1 | 518.2 | 1,649 | |
| May | 211.3 | 797.5 | 2,066.5 | |
| June | 231.3 | 743.6 | 1,646.3 | |
| July | 48.1 | 266.9 | 776.5 | |
| August | 25.4 | 123.3 | 351.2 | |
| September | 25.3 | 74.7 | 277.6 | |
| October | 56.5 | 110.6 | 252.9 | |
| November | 61.8 | 95.1 | 171.3 | |
| December | 50.2 | 80.7 | 137.3 |
All values in cubic feet per second (cfs).
Common questions
- When does San Miguel River at Uravan, CO normally run highest?
- May, on the long-term record. The median daily flow that month is about 797.5 cfs, against 74.7 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for San Miguel River at Uravan, CO?
- It depends on the month. In January, half of days historically fall near 78.4 cfs, with the middle 80% of days between 50.1 and 125.6 cfs. The month-by-month table on this page gives the full range.
- How long has San Miguel River at Uravan, CO been measured?
- Discharge records at USGS site 09177000 begin in 1954, about 72 years, covering roughly 9,198 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for San Miguel River at Uravan, CO?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is San Miguel River at Uravan, CO?
- The gauge sits at 38.35721, -108.71287, in Colorado, in hydrologic subbasin 14030003, at an elevation of about 4,998 feet, draining roughly 1,500 square miles.
- Can I use San Miguel River at Uravan, CO data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Upstream and downstream on the San Miguel River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the San Miguel River in full.
- San Miguel River near Placerville, CO 309 sq mi
- San Miguel River at Brooks Bridge near Nucla, CO 743 sq mi
- San Miguel River at Uravan, CO this page