USGS Streamgage 06204070
W Rosebud Creek at Emerald Lake Campground near Roscoe
W Rosebud Creek at Emerald Lake Campground near Roscoe is USGS streamgage 06204070 in Montana, monitoring river discharge in hydrologic subbasin 10070005. It drains a watershed of about 66 square miles. Discharge records at this site go back to 2006. Typical flow runs near 378.5 cfs in July and 51.1 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
- Montana
- Drainage area
- 66 sq mi
- Gauge elevation
- 6,338 ft
- Subbasin (HUC-8)
- 10070005
- Coordinates
- 45.25439, -109.69989
- USGS site number
- 06204070
- Records begin
- 2006-06-01 (20 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for W Rosebud Creek at Emerald Lake Campground near Roscoe. 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 |
|---|---|---|---|---|
| 85.1 | 101 | 111 | ||
| 80.1 | 99.5 | 114 | ||
| 66.9 | 93.5 | 111 | ||
| 64 | 92.9 | 115 | ||
| 60 | 89.7 | 114 | ||
| 55.6 | 87.5 | 115 | ||
| 51.5 | 83.8 | 112 | ||
| 46.7 | 80.4 | 110 | ||
| 45 | 79.2 | 112 | ||
| 47.9 | 79.8 | 114 | ||
| 50.1 | 80.9 | 117 | ||
| 43.5 | 75.7 | 113 | ||
| 37 | 70.7 | 108 | ||
| 40.9 | 73.5 | 113 |
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 20 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 | 55 | 88.7 | 127.5 | |
| February | 55.7 | 79 | 112 | |
| March | 40.7 | 68.3 | 91.8 | |
| April | 29.9 | 51.1 | 80.1 | |
| May | 40.7 | 106.3 | 190.7 | |
| June | 148.4 | 269.6 | 521.2 | |
| July | 225.9 | 378.5 | 643 | |
| August | 141.6 | 206.6 | 277.2 | |
| September | 50.6 | 112.7 | 194.1 | |
| October | 75.1 | 86.4 | 127.4 | |
| November | 61 | 84.5 | 136.1 | |
| December | 52.2 | 83.5 | 136.8 |
All values in cubic feet per second (cfs).
Common questions
- When does W Rosebud Creek at Emerald Lake Campground near Roscoe normally run highest?
- July, on the long-term record. The median daily flow that month is about 378.5 cfs, against 51.1 cfs in April, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for W Rosebud Creek at Emerald Lake Campground near Roscoe?
- It depends on the month. In January, half of days historically fall near 88.7 cfs, with the middle 80% of days between 55 and 127.5 cfs. The month-by-month table on this page gives the full range.
- How long has W Rosebud Creek at Emerald Lake Campground near Roscoe been measured?
- Discharge records at USGS site 06204070 begin in 2006, about 20 years, covering roughly 7,371 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for W Rosebud Creek at Emerald Lake Campground near Roscoe?
- 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 W Rosebud Creek at Emerald Lake Campground near Roscoe?
- The gauge sits at 45.25439, -109.69989, in Montana, in hydrologic subbasin 10070005, at an elevation of about 6,338 feet, draining roughly 66 square miles.
- Can I use W Rosebud Creek at Emerald Lake Campground near Roscoe 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.