Big Sandy Creek Near Havre Mount
USGS Site No: 06139500 • Big Sandy Creek • Hill County, MT
Big Sandy Creek Near Havre Mount on the Big Sandy Creek is currently at 1 cfs (Normal — 31th percentile for this date) . Gage height: 1.95 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 | 0 | |
| 25th | Low threshold | 0 | |
| 50th (Median) | Normal (median) | 5 | Today: 1 cfs |
| 75th | High threshold | 16 | |
| 95th | Very High threshold | 46 |
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 | — |
| May 27, 2026 | 2 | — |
| May 26, 2026 | 2 | — |
| May 25, 2026 | 3 | — |
| May 24, 2026 | 3 | — |
| May 23, 2026 | 3 | — |
| May 22, 2026 | 4 | — |
| May 21, 2026 | 4 | — |
| May 20, 2026 | 4 | — |
| May 19, 2026 | 4 | — |
| May 18, 2026 | 4 | — |
| May 17, 2026 | 4 | — |
| May 16, 2026 | 3 | — |
| May 15, 2026 | 4 | — |
| Apr 20, 2026 | 10 | — |
| Apr 19, 2026 | 9 | — |
| Apr 18, 2026 | 11 | — |
| Apr 17, 2026 | 10 | — |
| Apr 16, 2026 | 12 | — |
| Apr 15, 2026 | 11 | — |
| Apr 14, 2026 | 12 | — |
| Apr 13, 2026 | 12 | — |
| Apr 12, 2026 | 11 | — |
| Apr 11, 2026 | 11 | — |
| Apr 10, 2026 | 12 | — |
| Apr 9, 2026 | 13 | — |
| Apr 8, 2026 | 12 | — |
| Apr 7, 2026 | 12 | — |
| Apr 6, 2026 | 14 | — |
| Apr 5, 2026 | 15 | — |
Station Information
- USGS Site No
- 06139500
- State
- MT
- County
- Hill County
- Coordinates
- 48.5267, -109.8416
- Drainage Area
- 1,787 mi²
- Datum (ft)
- 2,510.0
- HUC Code
- 10050005
Flood Stage Thresholds
- Action Stage
- 7.5 ft
- Flood Stage
- 8.5 ft
- Moderate Flood
- 10.0 ft
- Major Flood
- 12.0 ft
Currently 6.55 ft below flood stage.
Recent Extremes
- Max discharge
-
70 cfsMay 7, 2025
- Min discharge
-
1 cfsMay 28, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Big Sandy Creek above Spring Coulee, near Laredo, MountNormal6.3 mi · 1 cfs
-
Milk River at Havre MountVery High7.1 mi · 1,240 cfs
-
Boxelder Creek Near Rocky Boy, MountLow15.7 mi · 2 cfs
- Unknown
-
Boxelder Creek at Box Elder, MountNormal17.0 mi · 1 cfs