Clarks Fork Yellowstone River at Edgar Mount
USGS Site No: 06208500 • Yellowstone River • Carbon County, MT
Clarks Fork Yellowstone River at Edgar Mount on the Yellowstone River is currently at 5,430 cfs (Very High — 152th percentile for this date) . Gage height: 6.61 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 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 | 378 | |
| 25th | Low threshold | 429 | |
| 50th (Median) | Normal (median) | 535 | |
| 75th | High threshold | 653 | |
| 95th | Very High threshold | 814 |
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 | 4,230 | — |
| May 27, 2026 | 3,050 | — |
| May 26, 2026 | 2,110 | — |
| May 25, 2026 | 1,460 | — |
| May 24, 2026 | 1,320 | — |
| May 23, 2026 | 1,430 | — |
| May 22, 2026 | 1,590 | — |
| May 21, 2026 | 1,520 | — |
| May 20, 2026 | 1,540 | — |
| May 19, 2026 | 1,850 | — |
| May 18, 2026 | 2,160 | — |
| May 17, 2026 | 2,500 | — |
| May 16, 2026 | 2,990 | — |
| May 15, 2026 | 3,630 | — |
| Apr 20, 2026 | 713 | — |
| Apr 19, 2026 | 701 | — |
| Apr 18, 2026 | 797 | — |
| Apr 17, 2026 | 881 | — |
| Apr 16, 2026 | 926 | — |
| Apr 15, 2026 | 994 | — |
| Apr 14, 2026 | 1,150 | — |
| Apr 13, 2026 | 1,250 | — |
| Apr 12, 2026 | 1,250 | — |
| Apr 11, 2026 | 1,150 | — |
| Apr 10, 2026 | 1,040 | — |
| Apr 9, 2026 | 991 | — |
| Apr 8, 2026 | 901 | — |
| Apr 7, 2026 | 831 | — |
| Apr 6, 2026 | 796 | — |
| Apr 5, 2026 | 831 | — |
Station Information
- USGS Site No
- 06208500
- State
- MT
- County
- Carbon County
- Coordinates
- 45.4657, -108.8441
- Drainage Area
- 2,045 mi²
- Datum (ft)
- 3,460.0
- HUC Code
- 10070006
Flood Stage Thresholds
- Flood Stage
- 9.0 ft
- Moderate Flood
- 10.0 ft
- Major Flood
- 11.5 ft
Currently 2.39 ft below flood stage.
Recent Extremes
- Max discharge
-
7,260 cfsJun 2, 2025
- Min discharge
-
124 cfsSep 11, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
White Horse Canal Near Silesia MountVery High3.6 mi · 30 cfs
- Unknown
-
Willow Creek Near Boyd MountVery Low19.0 mi · 6 cfs
-
Red Lodge Creek above Cooney Re near Boyd MountLow19.9 mi · 25 cfs
-
Stillwater River Near Absarokee, MountVery High28.4 mi · 3,280 cfs