Iron River at Caspian, MI
USGS Site No: 04060500 • Iron River • Iron County, MI
Iron River at Caspian, MI on the Iron River is currently at 74 cfs (Normal — 57th percentile for this date) . Gage height: 4.18 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 | 49 | |
| 25th | Low threshold | 55 | |
| 50th (Median) | Normal (median) | 66 | |
| 75th | High threshold | 93 | Today: 74 cfs |
| 95th | Very High threshold | 167 |
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 | 73 | — |
| May 27, 2026 | 73 | — |
| May 26, 2026 | 75 | — |
| May 25, 2026 | 76 | — |
| May 24, 2026 | 76 | — |
| May 23, 2026 | 76 | — |
| May 22, 2026 | 78 | — |
| May 21, 2026 | 82 | — |
| May 20, 2026 | 90 | — |
| May 19, 2026 | 99 | — |
| May 18, 2026 | 104 | — |
| May 17, 2026 | 84 | — |
| May 16, 2026 | 88 | — |
| May 15, 2026 | 85 | — |
| Apr 21, 2026 | 327 | — |
| Apr 20, 2026 | 420 | — |
| Apr 19, 2026 | 566 | — |
| Apr 18, 2026 | 563 | — |
| Apr 17, 2026 | 485 | — |
| Apr 16, 2026 | 562 | — |
| Apr 15, 2026 | 652 | — |
| Apr 14, 2026 | 787 | — |
| Apr 13, 2026 | 776 | — |
| Apr 12, 2026 | 451 | — |
| Apr 11, 2026 | 179 | — |
| Apr 10, 2026 | 161 | — |
| Apr 9, 2026 | 143 | — |
| Apr 8, 2026 | 121 | — |
| Apr 7, 2026 | 120 | — |
| Apr 6, 2026 | 130 | — |
Station Information
- USGS Site No
- 04060500
- State
- MI
- County
- Iron County
- Coordinates
- 46.0586, -88.6274
- Drainage Area
- 92 mi²
- Datum (ft)
- 1,438.7
- HUC Code
- 04030106
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 13.0 ft
- Major Flood
- 15.0 ft
Currently 6.82 ft below flood stage.
Recent Extremes
- Max discharge
-
787 cfsApr 14, 2026
- Min discharge
-
46 cfsAug 4, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
- Unknown
-
Paint River at Crystal Falls, MINormal14.4 mi · 367 cfs
-
Brule River at Us Highway 2 Near Florence, WINormal16.4 mi · 300 cfs
-
Paint River Near Alpha, MIVery High18.0 mi · 413 cfs
-
Michigamme River Near Crystal Falls, MIHigh20.1 mi · 865 cfs