USGS Streamgage 06190540
Boiling River at Mammoth,YNP
Boiling River at Mammoth,YNP is USGS streamgage 06190540 in Wyoming, monitoring river discharge in hydrologic subbasin 10070001. Discharge records at this site go back to 1988. Typical flow runs near 25.9 cfs in July and 23.9 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Wyoming
- Gauge elevation
- 5,672 ft
- Subbasin (HUC-8)
- 10070001
- Coordinates
- 44.98513, -110.68934
- USGS site number
- 06190540
- Records begin
- 1988-10-01 (38 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Boiling River at Mammoth,YNP. 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 |
|---|---|---|---|---|
| 22.3 | 22.5 | 22.7 | ||
| 22.2 | 22.5 | 22.7 | ||
| 22.1 | 22.5 | 22.7 | ||
| 22 | 22.5 | 22.8 | ||
| 21.8 | 22.5 | 22.8 | ||
| 21.7 | 22.5 | 22.9 | ||
| 21.5 | 22.5 | 22.9 | ||
| 21.3 | 22.4 | 23 | ||
| 21.1 | 22.4 | 23 | ||
| 20.9 | 22.4 | 23.1 | ||
| 20.8 | 22.3 | 23.1 | ||
| 20.7 | 22.3 | 23.2 | ||
| 20.6 | 22.3 | 23.2 | ||
| 20.5 | 22.3 | 23.3 |
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 38 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 | 20.1 | 23.2 | 28.2 | |
| February | 19.9 | 22.7 | 27.9 | |
| March | 19.9 | 22.9 | 27.4 | |
| April | 20.8 | 23.9 | 28.2 | |
| May | 23.3 | 27.1 | 32 | |
| June | 23.6 | 27.4 | 30.5 | |
| July | 21.8 | 25.9 | 28.4 | |
| August | 20.3 | 24.4 | 28 | |
| September | 20 | 24 | 28 | |
| October | 20 | 24 | 28 | |
| November | 20 | 23.1 | 27.5 | |
| December | 20 | 22.8 | 27.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Boiling River at Mammoth,YNP normally run highest?
- June, on the long-term record. The median daily flow that month is about 27.4 cfs, against 22.7 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Boiling River at Mammoth,YNP?
- It depends on the month. In January, half of days historically fall near 23.2 cfs, with the middle 80% of days between 20.1 and 28.2 cfs. The month-by-month table on this page gives the full range.
- How long has Boiling River at Mammoth,YNP been measured?
- Discharge records at USGS site 06190540 begin in 1988, about 38 years, covering roughly 8,154 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Boiling River at Mammoth,YNP?
- 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. A companion model forecasts each day's water-temperature high and low. 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 Boiling River at Mammoth,YNP?
- The gauge sits at 44.98513, -110.68934, in Wyoming, in hydrologic subbasin 10070001, at an elevation of about 5,672 feet.
- Can I use Boiling River at Mammoth,YNP 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.