Sun River Near Vaughn Mount
USGS Site No: 06089000 • Sun River • Cascade County, MT
Sun River Near Vaughn Mount on the Sun River is currently at 2,900 cfs (Very High — 127th percentile for this date) . Gage height: 3.79 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 228 | |
| 25th | Low threshold | 274 | |
| 50th (Median) | Normal (median) | 342 | |
| 75th | High threshold | 401 | |
| 95th | Very High threshold | 683 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 1,970 | — |
| May 27, 2026 | 1,200 | — |
| May 26, 2026 | 851 | — |
| May 25, 2026 | 539 | — |
| May 24, 2026 | 653 | — |
| May 23, 2026 | 830 | — |
| May 22, 2026 | 942 | — |
| May 21, 2026 | 983 | — |
| May 20, 2026 | 1,090 | — |
| May 19, 2026 | 1,330 | — |
| May 18, 2026 | 1,380 | — |
| May 17, 2026 | 867 | — |
| May 16, 2026 | 1,430 | — |
| May 15, 2026 | 2,240 | — |
| Apr 20, 2026 | 917 | — |
| Apr 19, 2026 | 966 | — |
| Apr 18, 2026 | 1,130 | — |
| Apr 17, 2026 | 1,250 | — |
| Apr 16, 2026 | 1,290 | — |
| Apr 15, 2026 | 1,330 | — |
| Apr 14, 2026 | 1,310 | — |
| Apr 13, 2026 | 1,160 | — |
| Apr 12, 2026 | 987 | — |
| Apr 11, 2026 | 943 | — |
| Apr 10, 2026 | 940 | — |
| Apr 9, 2026 | 902 | — |
| Apr 8, 2026 | 882 | — |
| Apr 7, 2026 | 907 | — |
| Apr 6, 2026 | 957 | — |
| Apr 5, 2026 | 957 | — |
Station Information
- USGS Site No
- 06089000
- State
- MT
- County
- Cascade County
- Coordinates
- 47.5258, -111.5110
- Drainage Area
- 1,774 mi²
- Datum (ft)
- 3,340.0
- HUC Code
- 10030104
Flood Stage Thresholds
- Action Stage
- 5.0 ft
- Flood Stage
- 6.0 ft
- Moderate Flood
- 8.0 ft
- Major Flood
- 9.0 ft
Currently 2.21 ft below flood stage.
Recent Extremes
- Max discharge
-
2,240 cfsMay 15, 2026
- Min discharge
-
172 cfsAug 25, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Muddy Creek at Vaughn MountVery High2.8 mi · 174 cfs
-
Missouri River Near Ulm MountNormal8.5 mi · 3,830 cfs
-
Missouri River at Cascade MountNormal19.7 mi · 3,800 cfs
-
Sun River at Simms MountVery High19.7 mi · 3,140 cfs
-
Missouri River Near Great Falls MountHigh21.4 mi · 6,440 cfs