USGS Streamgage 09237500
Yampa River below Stagecoach Reservoir, CO
Yampa River below Stagecoach Reservoir, CO is USGS streamgage 09237500 in Colorado, monitoring river discharge in hydrologic subbasin 14050001. It sits on the Yampa River, alongside 7 other gauges Rivermatics tracks on the same river. It drains a watershed of about 228 square miles. Discharge records at this site go back to 1939. Typical flow runs near 74.4 cfs in July and 63 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.
View live conditions & forecast →
Gauge details
- State
- Colorado
- Drainage area
- 228 sq mi
- Gauge elevation
- 7,069 ft
- Subbasin (HUC-8)
- 14050001
- Coordinates
- 40.28654, -106.82906
- USGS site number
- 09237500
- Records begin
- 1939-10-01 (87 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Yampa River below Stagecoach Reservoir, 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 |
|---|---|---|---|---|
| 34 | 35.4 | 37 | ||
| 33.1 | 35.1 | 37.1 | ||
| 32.8 | 35.2 | 38.3 | ||
| 32.3 | 35.4 | 39.4 | ||
| 31.7 | 35.2 | 39.9 | ||
| 30.9 | 35.2 | 40.5 | ||
| 30 | 35.1 | 41.2 | ||
| 29.3 | 34.8 | 42.7 | ||
| 28.9 | 34.8 | 42.9 | ||
| 27.8 | 34.5 | 42.5 | ||
| 26.9 | 34.3 | 43 | ||
| 26.6 | 34.3 | 43.5 | ||
| 25.9 | 34.2 | 43.7 | ||
| 24.6 | 33.8 | 43.7 |
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 | 31.6 | 47.7 | 76 | |
| February | 30.1 | 47.9 | 81.9 | |
| March | 33.5 | 52.5 | 88.9 | |
| April | 40.2 | 63 | 144.9 | |
| May | 29.6 | 84.5 | 232.5 | |
| June | 23.7 | 75.1 | 208.4 | |
| July | 40.7 | 74.4 | 152.8 | |
| August | 43.9 | 77.1 | 128.2 | |
| September | 38.1 | 64 | 98.6 | |
| October | 30.3 | 47.7 | 87.2 | |
| November | 33.3 | 48.3 | 78.7 | |
| December | 30.7 | 46.4 | 73.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Yampa River below Stagecoach Reservoir, CO normally run highest?
- May, on the long-term record. The median daily flow that month is about 84.5 cfs, against 46.4 cfs in December, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Yampa River below Stagecoach Reservoir, CO?
- It depends on the month. In January, half of days historically fall near 47.7 cfs, with the middle 80% of days between 31.6 and 76 cfs. The month-by-month table on this page gives the full range.
- How long has Yampa River below Stagecoach Reservoir, CO been measured?
- Discharge records at USGS site 09237500 begin in 1939, about 87 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Yampa River below Stagecoach Reservoir, 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 Yampa River below Stagecoach Reservoir, CO?
- The gauge sits at 40.28654, -106.82906, in Colorado, in hydrologic subbasin 14050001, at an elevation of about 7,069 feet, draining roughly 228 square miles.
- Can I use Yampa River below Stagecoach Reservoir, 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 Yampa River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Yampa River in full.
- Yampa River above Stagecoach Reservoir, CO 206 sq mi
- Yampa River below Stagecoach Reservoir, CO this page
- Yampa River at Steamboat Springs, CO 567 sq mi
- Yampa River below Soda Creek at Steamboat Springs, CO 597 sq mi
- Yampa River above Elkhead Creek near Hayden, CO 1,575 sq mi
- Yampa River below Craig, CO 2,128 sq mi
- Yampa River near Maybell, CO 3,383 sq mi
- Yampa River at Deerlodge Park, CO 7,931 sq mi
Other gauges in this subbasin
- Fish Creek at Upper Sta near Steamboat Springs, CO
- Yampa River at Steamboat Springs, CO
- Yampa River below Soda Creek at Steamboat Springs, CO
- Elk River near Milner, CO
- Yampa River above Elkhead Creek near Hayden, CO
- Elkhead Creek above Long Gulch, near Hayden, CO
- Elkhead Creek near Craig, CO
- Yampa River below Craig, CO