Yellowstone River at Corwin Springs, MT
South-Central Montana (Yellowstone & Bighorn) · USGS gauge 06191500 · Updated Oct 24, 2:37 PM PDT · USGS data, provisional
All 3 Yellowstone River gauges in Montana
Reading time: Oct 24, 2:00 PM PDT · Provisional data
Flow is in a typical range for the date. Rivers are generally easiest to fish and float when they are near their normal flow, but this status says nothing about water clarity, hatches, hazards such as wood in the river, or dam releases.
- Vs. normal for this date
- 38th percentile
- Typical range (25th–75th)
- 1,150–1,640 cfs
- Median for this date
- 1,350 cfs
- 7-day low / high
- 1,150 / 1,280 cfs
Plain-language explanation
Yellowstone River at Corwin Springs is flowing at 1,250 cubic feet per second (cfs) as of Oct 24, 2:00 PM PDT. That is in the normal range for this time of year: lower than about 62% of the daily flows this gauge has recorded for this date (give or take 7 days) over 122 years of record (1889–2026).
The middle half of those historical flows runs from 1,150 to 1,640 cfs, with a median of 1,350 cfs; the lowest 10% of days are at or below 987 cfs and the highest 10% at or above 1,900 cfs.
Over the last 24 hours the flow has been steady (+7.8%). In the last 7 days it ranged from 1,150 to 1,280 cfs.
Why this status: Flow is within the range this gauge normally sees at this time of year (or the deviation is too small in absolute terms to matter).
Quick answers
Is the Yellowstone River at Corwin Springs fishable today?
Flowcast's status for the Yellowstone River at Corwin Springs is “Fishable/Floatable”: flow is 1,250 cfs, within the range this gauge normally sees at this time of year, at the 38th percentile for this date (as of Oct 24, 2:00 PM PDT). That describes flow only. It says nothing about water clarity, temperature, fish activity, access or fishing regulations.
What is the current flow of the Yellowstone River at Corwin Springs?
1,250 cubic feet per second at USGS gauge 06191500 as of Oct 24, 2:00 PM PDT, provisional data.
Is the Yellowstone River at Corwin Springs too high or too low right now?
Neither: it is inside the typical range for the date (1,150 to 1,640 cfs).
Is the Yellowstone River at Corwin Springs rising or falling?
Over the last 24 hours the flow has been steady (+7.8%).
What is a normal flow for the Yellowstone River at Corwin Springs in October?
For this date (give or take 7 days) the median is 1,350 cfs and the middle half of days runs 1,150 to 1,640 cfs, over 122 years of USGS record.
7-day trend
Hourly flow in cfs, Pacific time. The shaded band is the typical range (25th–75th percentile) for this date, shown when it falls within the chart.
| Day (Pacific) | Mean cfs | Percentile | Status that day |
|---|---|---|---|
| Sun Oct 18 | 1,208 | 26th | Fishable/Floatable |
| Mon Oct 19 | 1,188 | 24th | Fishable/Floatable |
| Tue Oct 20 | 1,168 | 23rd | Fishable/Floatable |
| Wed Oct 21 | 1,158 | 23rd | Fishable/Floatable |
| Thu Oct 22 | 1,150 | 24th | Fishable/Floatable |
| Fri Oct 23 | 1,165 | 27th | Fishable/Floatable |
| Sat Oct 24 (so far) | 1,233 | 36th | Fishable/Floatable |
Seasonal context
Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 122 years of USGS daily data (1889–2026).
Guide, outfitter or fly shop on this river? List your service on Flowcast (free early listings, launching).
Official resources
- USGS site page for gauge 06191500 (USGS: live readings, history, station details)
- Montana fishing regulations (FWP)
- Montana aquatic invasive species (FWP)
- Montana fishing access sites (FWP)
Links go to the agencies' own websites and were checked as working. Flowcast does not summarize fishing or boating rules: regulations and closures change, and the agency pages are the authority.
About this gauge
- USGS site
- USGS-06191500
- USGS name
- Yellowstone River At Corwin Springs Mt
- Drainage area
- 2,615 sq mi
- Location
- 45.1121, -110.7937
- Record in this analysis
- 1889–2026
Nearby gauges
- Madison River near West Yellowstone, MT Fishable/Floatable 356 cfs · about 34 mi away (straight line)
- Yellowstone River near Livingston, MT Fishable/Floatable 1,630 cfs · about 35 mi away (straight line)
- Gallatin River near Gallatin Gateway, MT Fishable/Floatable 419 cfs · about 35 mi away (straight line)
- Madison River near Cameron, MT Fishable/Floatable 994 cfs · about 47 mi away (straight line)
- Madison River below Ennis Lake, near McAllister, MT Fishable/Floatable 1,410 cfs · about 49 mi away (straight line)
- Henrys Fork near Island Park, ID Fishable/Floatable 91.9 cfs · about 56 mi away (straight line)
Browse this region
Questions about what the status means? How to read a status · FAQ.