South Fork San Miguel River Near Ophir, CO

USGS Site No: 09171310 • South Fork San Miguel River • San Miguel County, CO

South Fork San Miguel River Near Ophir, CO on the South Fork San Miguel River is currently at 87 cfs (Low — 15th percentile for this date) . Gage height: 1.98 ft.

Reading from

87
CFS Discharge
1.98
Gage Height (ft)
Low
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 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 63
25th Low threshold 139 Today: 87 cfs
50th (Median) Normal (median) 197
75th High threshold 378
95th Very High threshold 0

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.

132 66 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 78 —
May 27, 2026 68 —
May 26, 2026 64 —
May 25, 2026 61 —
May 24, 2026 58 —
May 23, 2026 57 —
May 22, 2026 58 —
May 21, 2026 58 —
May 20, 2026 60 —
May 19, 2026 64 —
May 18, 2026 71 —
May 17, 2026 76 —
May 16, 2026 76 —
May 15, 2026 75 —
Apr 20, 2026 34 —
Apr 19, 2026 34 —
Apr 18, 2026 33 —
Apr 17, 2026 35 —
Apr 16, 2026 35 —
Apr 15, 2026 36 —
Apr 14, 2026 36 —
Apr 13, 2026 36 —
Apr 12, 2026 37 —
Apr 11, 2026 38 —
Apr 10, 2026 38 —
Apr 9, 2026 38 —
Apr 8, 2026 37 —
Apr 7, 2026 37 —
Apr 6, 2026 38 —
Apr 5, 2026 39 —

Station Information

USGS Site No
09171310
State
CO
County
San Miguel County
Coordinates
37.8731, -107.8944
Drainage Area
42 mi²
Datum (ft)
8,484.3
HUC Code
140300030103
View on USGS NWIS →

Recent Extremes

Max discharge
206 cfs
Jun 14, 2025
Min discharge
18 cfs
Feb 8, 2026

Computed from the local daily-values archive.

Nearby Gauges

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