Gallatin River Above Deer Creek, Near Big Sky, Mount

USGS Site No: 06043120Gallatin River • Gallatin County, MT

Gallatin River Above Deer Creek, Near Big Sky, Mount on the Gallatin River is currently at 1,700 cfs (Normal — 35th percentile for this date) . Gage height: 6.46 ft.

Reading from

1,700
CFS Discharge
6.46
Gage Height (ft)
Normal
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 0
25th Low threshold 1,660
50th (Median) Normal (median) 1,760 Today: 1,700 cfs
75th High threshold 2,960
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.

2.4k 1.2k 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 1,710
May 27, 2026 1,500
May 26, 2026 1,360
May 25, 2026 1,120
May 24, 2026 901
May 23, 2026 796
May 22, 2026 794
May 21, 2026 853
May 20, 2026 879
May 19, 2026 941
May 18, 2026 1,070
May 17, 2026 1,230
May 16, 2026 1,390
May 15, 2026 1,580
Apr 20, 2026 450
Apr 19, 2026 426
Apr 18, 2026 420
Apr 17, 2026 432
Apr 16, 2026 494
Apr 15, 2026 488
Apr 14, 2026 517
Apr 13, 2026 569
Apr 12, 2026 597
Apr 11, 2026 538
Apr 10, 2026 488
Apr 9, 2026 459
Apr 8, 2026 447
Apr 7, 2026 409
Apr 6, 2026 383
Apr 5, 2026 369

Station Information

USGS Site No
06043120
State
MT
Coordinates
45.2973, -111.2114
Drainage Area
538 mi²
Datum (ft)
5,875.0
HUC Code
10020008
View on USGS NWIS →

Recent Extremes

Max discharge
2,780 cfs
Jun 1, 2025
Min discharge
144 cfs
Dec 30, 2025

Computed from the local daily-values archive.