2 USGS Streamgages · Columbia River system
Efsf Salmon River flows and levels
Efsf Salmon River is gauged at 2 USGS streamgages in Idaho, each tracked by Rivermatics. It feeds the East Fork South Fork Salmon River. It drains into the Columbia River system.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| Efsf Salmon River above Meadow Creek near Stibnite, ID | ID | — | — | 9.2 | 11.3 | — |
| Efsf Salmon River above Sugar Creek near Stibnite, ID | ID | — | — | 37.7 | 29.4 | — |
Typical flow by month at Efsf Salmon River above Sugar Creek near Stibnite, ID
The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 15 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 | 7.8 | 9.9 | 13.5 | |
| February | 7.6 | 9.8 | 16.9 | |
| March | 7.8 | 11.6 | 34.4 | |
| April | 15.4 | 37.7 | 89.8 | |
| May | 78.5 | 136.5 | 242.2 | |
| June | 57.9 | 106.1 | 219.1 | |
| July | 20.2 | 29.4 | 49.8 | |
| August | 11.6 | 15.7 | 20.9 | |
| September | 9.9 | 12.5 | 18.3 | |
| October | 9.6 | 12.5 | 22 | |
| November | 9.5 | 13 | 22.7 | |
| December | 8.6 | 10.3 | 18.7 |
All values in cubic feet per second (cfs).
Common questions
- When does the Efsf Salmon River run highest?
- May, on the long-term record at Efsf Salmon River above Sugar Creek near Stibnite, ID — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 136.5 cfs that month, against 9.8 cfs in February, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the Efsf Salmon River?
- Rivermatics tracks 2 USGS streamgages on the Efsf Salmon River, across Idaho. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- What river system is the Efsf Salmon River part of?
- The Efsf Salmon River drains into the Columbia River system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
- Can I use Efsf Salmon River 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.
Other rivers in the Columbia River system
- Snake River 31 gauges
- Willamette River 11 gauges
- Mckenzie River 9 gauges
- Big Wood River 8 gauges
- Bull Run River 6 gauges
- Cowlitz River 6 gauges
- Deschutes River 6 gauges
- Methow River 6 gauges