St. Regis River Near St. Regis, Mount

USGS Site No: 12354000St. Regis River • Mineral County, MT

St. Regis River Near St. Regis, Mount on the St. Regis River is currently at 708 cfs (Low — 21th percentile for this date) . Gage height: 3.40 ft.

Reading from

708
CFS Discharge
3.40
Gage Height (ft)
Low
Flow Condition
Normal
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 471
25th Low threshold 789 Today: 708 cfs
50th (Median) Normal (median) 1,210
75th High threshold 1,740
95th Very High threshold 3,100

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.

5.7k 2.9k 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 711
May 27, 2026 710
May 26, 2026 676
May 25, 2026 628
May 24, 2026 608
May 23, 2026 593
May 22, 2026 601
May 21, 2026 625
May 20, 2026 648
May 19, 2026 690
May 18, 2026 749
May 17, 2026 831
May 16, 2026 926
May 15, 2026 1,040
Apr 20, 2026 908
Apr 19, 2026 943
Apr 18, 2026 998
Apr 17, 2026 1,080
Apr 16, 2026 1,190
Apr 15, 2026 1,280
Apr 14, 2026 1,300
Apr 13, 2026 1,320
Apr 12, 2026 1,230
Apr 11, 2026 1,120
Apr 10, 2026 1,070
Apr 9, 2026 1,090
Apr 8, 2026 1,090
Apr 7, 2026 1,020
Apr 6, 2026 951
Apr 5, 2026 952

Station Information

USGS Site No
12354000
State
MT
Coordinates
47.2967, -115.1226
Drainage Area
304 mi²
Datum (ft)
2,645.0
HUC Code
17010204
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
7.5 ft
Flood Stage
8.0 ft

Currently 4.60 ft below flood stage.

Recent Extremes

Max discharge
4,370 cfs
Dec 11, 2025
Min discharge
56 cfs
Sep 29, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges