Big Fork River at Big Falls, MN
USGS Site No: 05132000 • Big Fork River • Koochiching County, MN
Big Fork River at Big Falls, MN on the Big Fork River is currently at 467 cfs (Normal — 45th percentile for this date) . Gage height: 3.61 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 | 139 | |
| 25th | Low threshold | 259 | |
| 50th (Median) | Normal (median) | 515 | Today: 467 cfs |
| 75th | High threshold | 900 | |
| 95th | Very High threshold | 1,730 |
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 | 533 | — |
| May 27, 2026 | 577 | — |
| May 26, 2026 | 589 | — |
| May 25, 2026 | 573 | — |
| May 24, 2026 | 564 | — |
| May 23, 2026 | 566 | — |
| May 22, 2026 | 579 | — |
| May 21, 2026 | 591 | — |
| May 20, 2026 | 580 | — |
| May 19, 2026 | 555 | — |
| May 18, 2026 | 546 | — |
| May 17, 2026 | 560 | — |
| May 16, 2026 | 600 | — |
| May 15, 2026 | 628 | — |
| Apr 20, 2026 | 1,220 | — |
| Apr 19, 2026 | 1,370 | — |
| Apr 18, 2026 | 1,480 | — |
| Feb 12, 2026 | 166 | — |
| Feb 11, 2026 | 140 | — |
| Feb 10, 2026 | 137 | — |
| Feb 9, 2026 | 133 | — |
| Feb 8, 2026 | 128 | — |
| Feb 7, 2026 | 125 | — |
| Feb 6, 2026 | 120 | — |
| Feb 5, 2026 | 114 | — |
| Feb 4, 2026 | 110 | — |
| Feb 3, 2026 | 108 | — |
| Feb 2, 2026 | 107 | — |
| Feb 1, 2026 | 107 | — |
| Jan 31, 2026 | 106 | — |
Station Information
- USGS Site No
- 05132000
- State
- MN
- County
- Koochiching County
- Coordinates
- 48.1963, -93.8080
- Drainage Area
- 1,480 mi²
- Datum (ft)
- 1,145.8
- HUC Code
- 09030006
Flood Stage Thresholds
- Flood Stage
- 16.0 ft
- Moderate Flood
- 18.0 ft
Currently 12.39 ft below flood stage.
Recent Extremes
- Max discharge
-
3,930 cfsMay 2, 2025
- Min discharge
-
106 cfsJan 31, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Little Fork River at Littlefork, MNNormal18.2 mi · 845 cfs
-
Rainy River at Manitou Rapids, MNHigh30.7 mi · 26,300 cfs
-
Rainy River at Boat Landing below International Falls,mnVery High32.0 mi · 24,100 cfs
-
Gold Portage Outlet From Kabetogama Lake near Ray,mnVery High40.6 mi · 653 cfs
-
Rapid River Near Baudette, MNNormal41.8 mi · 418 cfs