A small USGS stream gaging station with an antenna on its roof under a cloudy evening sky

Check a river’s flow.

Search any USGS stream gauge by river or station name, by state, or near you. Each card shows the latest flow and how it compares with the normal range for today’s date; open a gauge for the full picture: trend, water temperature and what it means for trout, safety and the official NWS flood stage.

Flow rate checkerSwitch tool

Your browser will ask before sharing your location. It is used once, rounded to about a kilometre, to list gauges within 30 miles, and is not stored.

8 USGS gauges near your location (within 30 miles)

Blackfoot R ab Nevada Cr nr Helmville MT

USGS 12335100

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 192 ft³/s
Gauge height: 3.86 ft

Above normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:45 PM MST	192	3.86
Nov 5, 4:45 PM MST	192	3.86
Nov 5, 3:45 PM MST	192	3.86
Nov 5, 2:45 PM MST	192	3.86
Nov 5, 1:45 PM MST	192	3.86
Nov 5, 12:45 PM MST	192	3.86
Nov 5, 11:45 AM MST	192	3.86
Nov 5, 10:45 AM MST	192	3.86
Nov 5, 9:45 AM MST	192	3.86
Nov 5, 8:45 AM MST	192	3.86
Nov 5, 7:45 AM MST	192	3.86
Nov 5, 6:45 AM MST	192	3.86
Nov 5, 5:45 AM MST	192	3.86
Nov 5, 4:45 AM MST	192	3.86
Nov 5, 3:45 AM MST	192	3.86
Nov 5, 2:45 AM MST	195	3.87
Nov 5, 1:45 AM MST	195	3.87
Nov 5, 12:45 AM MST	195	3.87
Nov 4, 11:45 PM MST	195	3.87
Nov 4, 10:45 PM MST	195	3.87
Nov 4, 9:45 PM MST	195	3.87
Nov 4, 8:45 PM MST	195	3.87
Nov 4, 7:45 PM MST	195	3.87
Nov 4, 6:45 PM MST	195	3.87
Nov 4, 5:45 PM MST	195	3.87
Nov 4, 4:45 PM MST	195	3.87
Nov 4, 3:45 PM MST	195	3.87

Reading Nov 5, 5:45 PM MST · checked 6:20 PM MST

Open full screen USGS

11.1 miles away in a straight line

Clark Fork at Goldcreek MT

USGS 12324680

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 346 ft³/s
Gauge height: 4.54 ft

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:00 PM MST	346	4.54
Nov 5, 4:00 PM MST	351	4.55
Nov 5, 3:00 PM MST	351	4.55
Nov 5, 2:00 PM MST	351	4.55
Nov 5, 1:00 PM MST	351	4.55
Nov 5, 12:00 PM MST	351	4.55
Nov 5, 11:00 AM MST	351	4.55
Nov 5, 10:00 AM MST	351	4.55
Nov 5, 9:00 AM MST	351	4.55
Nov 5, 8:00 AM MST	351	4.55
Nov 5, 7:00 AM MST	351	4.55
Nov 5, 6:00 AM MST	351	4.55
Nov 5, 5:00 AM MST	351	4.55
Nov 5, 4:00 AM MST	351	4.55
Nov 5, 3:00 AM MST	351	4.55
Nov 5, 2:00 AM MST	351	4.55
Nov 5, 1:00 AM MST	351	4.55
Nov 5, 12:00 AM MST	351	4.55
Nov 4, 11:00 PM MST	351	4.55
Nov 4, 10:00 PM MST	356	4.56
Nov 4, 9:00 PM MST	356	4.56
Nov 4, 8:00 PM MST	351	4.55
Nov 4, 7:00 PM MST	351	4.55
Nov 4, 6:00 PM MST	356	4.56
Nov 4, 5:00 PM MST	356	4.56
Nov 4, 4:00 PM MST	356	4.56
Nov 4, 3:00 PM MST	361	4.57

NF Blackfoot R ab Dry Gulch nr Ovando MT

USGS 12338300

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 163 ft³/s
Gauge height: 4.38 ft

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 6:00 PM MST	163	4.38
Nov 5, 5:00 PM MST	166	4.39
Nov 5, 4:00 PM MST	166	4.39
Nov 5, 3:00 PM MST	166	4.39
Nov 5, 2:00 PM MST	166	4.39
Nov 5, 1:00 PM MST	166	4.39
Nov 5, 12:00 PM MST	166	4.39
Nov 5, 11:00 AM MST	166	4.39
Nov 5, 10:00 AM MST	166	4.39
Nov 5, 9:00 AM MST	166	4.39
Nov 5, 8:00 AM MST	166	4.39
Nov 5, 7:00 AM MST	163	4.38
Nov 5, 6:00 AM MST	163	4.38
Nov 5, 5:00 AM MST	163	4.38
Nov 5, 4:00 AM MST	163	4.38
Nov 5, 3:00 AM MST	163	4.38
Nov 5, 2:00 AM MST	166	4.39
Nov 5, 1:00 AM MST	166	4.39
Nov 5, 12:00 AM MST	166	4.39
Nov 4, 11:00 PM MST	166	4.39
Nov 4, 10:00 PM MST	166	4.39
Nov 4, 9:00 PM MST	166	4.39
Nov 4, 8:00 PM MST	163	4.38
Nov 4, 7:00 PM MST	166	4.39
Nov 4, 6:00 PM MST	166	4.39
Nov 4, 5:00 PM MST	166	4.39
Nov 4, 4:00 PM MST	166	4.39

Flint Creek near Drummond MT

USGS 12331500

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 139 ft³/s
Gauge height: 2.59 ft

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:15 PM MST	139	2.59
Nov 5, 4:15 PM MST	136	2.58
Nov 5, 3:15 PM MST	139	2.59
Nov 5, 2:15 PM MST	139	2.59
Nov 5, 1:15 PM MST	139	2.59
Nov 5, 12:15 PM MST	139	2.59
Nov 5, 11:15 AM MST	139	2.59
Nov 5, 10:15 AM MST	141	2.6
Nov 5, 9:15 AM MST	141	2.6
Nov 5, 8:15 AM MST	141	2.6
Nov 5, 7:15 AM MST	141	2.6
Nov 5, 6:15 AM MST	141	2.6
Nov 5, 5:15 AM MST	144	2.61
Nov 5, 4:15 AM MST	141	2.6
Nov 5, 3:15 AM MST	141	2.6
Nov 5, 2:15 AM MST	141	2.6
Nov 5, 1:15 AM MST	141	2.6
Nov 5, 12:15 AM MST	141	2.6
Nov 4, 11:15 PM MST	141	2.6
Nov 4, 10:15 PM MST	141	2.6
Nov 4, 9:15 PM MST	141	2.6
Nov 4, 8:15 PM MST	141	2.6
Nov 4, 7:15 PM MST	141	2.6
Nov 4, 6:15 PM MST	141	2.6
Nov 4, 5:15 PM MST	141	2.6
Nov 4, 4:15 PM MST	141	2.6
Nov 4, 3:15 PM MST	141	2.6

Little Blackfoot River near Garrison MT

USGS 12324590

Limited data: Normal flow for the date: no water temperature here

No water temperature here. The full view adds the NWS forecast.

Discharge: 87.2 ft³/s
Gauge height: 0.78 ft

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:30 PM MST	87.2	0.78
Nov 5, 4:30 PM MST	87.2	0.78
Nov 5, 3:30 PM MST	84.7	0.77
Nov 5, 2:30 PM MST	87.2	0.78
Nov 5, 1:30 PM MST	87.2	0.78
Nov 5, 12:30 PM MST	87.2	0.78
Nov 5, 11:30 AM MST	87.2	0.78
Nov 5, 10:30 AM MST	87.2	0.78
Nov 5, 9:30 AM MST	87.2	0.78
Nov 5, 8:30 AM MST	89.6	0.79
Nov 5, 7:30 AM MST	87.2	0.78
Nov 5, 6:30 AM MST	89.6	0.79
Nov 5, 5:30 AM MST	89.6	0.79
Nov 5, 4:30 AM MST	89.6	0.79
Nov 5, 3:30 AM MST	89.6	0.79
Nov 5, 2:30 AM MST	89.6	0.79
Nov 5, 1:30 AM MST	89.6	0.79
Nov 5, 12:30 AM MST	89.6	0.79
Nov 4, 11:30 PM MST	89.6	0.79
Nov 4, 10:30 PM MST	87.2	0.78
Nov 4, 9:30 PM MST	87.2	0.78
Nov 4, 8:30 PM MST	89.6	0.79
Nov 4, 7:30 PM MST	89.6	0.79
Nov 4, 6:30 PM MST	89.6	0.79
Nov 4, 5:30 PM MST	89.6	0.79
Nov 4, 4:30 PM MST	89.6	0.79
Nov 4, 3:30 PM MST	92.1	0.8

Clark Fork ab Little Blackfoot R nr Garrison MT

USGS 12324400

Good: Good trout conditions: fish normally

Discharge: 278 ft³/s
Gauge height: 3.34 ft
Water temp: 39.7°F

Normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)	Water temp (°F)
Nov 5, 5:45 PM MST	278	3.34	39.7
Nov 5, 4:45 PM MST	275	3.33	39.7
Nov 5, 3:45 PM MST	275	3.33	39.6
Nov 5, 2:45 PM MST	275	3.33	39.6
Nov 5, 1:45 PM MST	275	3.33	39.4
Nov 5, 12:45 PM MST	275	3.33	39
Nov 5, 11:45 AM MST	275	3.33	38.8
Nov 5, 10:45 AM MST	275	3.33	38.5
Nov 5, 9:45 AM MST	272	3.32	38.3
Nov 5, 8:45 AM MST	275	3.33	38.3
Nov 5, 7:45 AM MST	275	3.33	38.3
Nov 5, 6:45 AM MST	275	3.33	38.5
Nov 5, 5:45 AM MST	275	3.33	38.7
Nov 5, 4:45 AM MST	275	3.33	38.7
Nov 5, 3:45 AM MST	275	3.33	38.8
Nov 5, 2:45 AM MST	275	3.33	38.8
Nov 5, 1:45 AM MST	275	3.33	39
Nov 5, 12:45 AM MST	275	3.33	39.2
Nov 4, 11:45 PM MST	275	3.33	39.2
Nov 4, 10:45 PM MST	278	3.34	39.4
Nov 4, 9:45 PM MST	278	3.34	39.4
Nov 4, 8:45 PM MST	275	3.33	39.6
Nov 4, 7:45 PM MST	278	3.34	39.6
Nov 4, 6:45 PM MST	278	3.34	39.7
Nov 4, 5:45 PM MST	278	3.34	39.9
Nov 4, 4:45 PM MST	278	3.34	40.3
Nov 4, 3:45 PM MST	278	3.34	40.5

Clark Fork near Drummond MT

USGS 12331800

Limited data: Normal flow for the date: no water temperature here

No water temperature here. The full view adds the NWS forecast.

Discharge: 600 ft³/s
Gauge height: 3.24 ft

Normal for Nov 5 Steady · 24 h Below NWS action stage

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:15 PM MST	600	3.24
Nov 5, 4:15 PM MST	605	3.25
Nov 5, 3:15 PM MST	605	3.25
Nov 5, 2:15 PM MST	605	3.25
Nov 5, 1:15 PM MST	605	3.25
Nov 5, 12:15 PM MST	610	3.26
Nov 5, 11:15 AM MST	605	3.25
Nov 5, 10:15 AM MST	610	3.26
Nov 5, 9:15 AM MST	605	3.25
Nov 5, 8:15 AM MST	605	3.25
Nov 5, 7:15 AM MST	610	3.26
Nov 5, 6:15 AM MST	605	3.25
Nov 5, 5:15 AM MST	610	3.26
Nov 5, 4:15 AM MST	610	3.26
Nov 5, 3:15 AM MST	610	3.26
Nov 5, 2:15 AM MST	610	3.26
Nov 5, 1:15 AM MST	610	3.26
Nov 5, 12:15 AM MST	610	3.26
Nov 4, 11:15 PM MST	615	3.27
Nov 4, 10:15 PM MST	615	3.27
Nov 4, 9:15 PM MST	615	3.27
Nov 4, 8:15 PM MST	615	3.27
Nov 4, 7:15 PM MST	615	3.27
Nov 4, 6:15 PM MST	615	3.27
Nov 4, 5:15 PM MST	615	3.27
Nov 4, 4:15 PM MST	615	3.27
Nov 4, 3:15 PM MST	620	3.28

Clark Fork at Deer Lodge MT

USGS 12324200

Good: Good conditions: fish normally

The full view adds the NWS forecast.

Discharge: 218 ft³/s
Gauge height: 2.84 ft
Water temp: 39.9°F

Normal for Nov 5 Steady · 24 h Below NWS action stage

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)	Water temp (°F)
Nov 5, 5:30 PM MST	218	2.84	39.9
Nov 5, 4:30 PM MST	222	2.85	40.1
Nov 5, 3:30 PM MST	222	2.85	40.1
Nov 5, 2:30 PM MST	218	2.84	39.9
Nov 5, 1:30 PM MST	218	2.84	39.6
Nov 5, 12:30 PM MST	222	2.85	39.2
Nov 5, 11:30 AM MST	218	2.84	38.7
Nov 5, 10:30 AM MST	218	2.84	38.5
Nov 5, 9:30 AM MST	218	2.84	38.5
Nov 5, 8:30 AM MST	214	2.83	38.5
Nov 5, 7:30 AM MST	214	2.83	38.5
Nov 5, 6:30 AM MST	218	2.84	38.7
Nov 5, 5:30 AM MST	214	2.83	38.8
Nov 5, 4:30 AM MST	218	2.84	39
Nov 5, 3:30 AM MST	218	2.84	39.2
Nov 5, 2:30 AM MST	222	2.85	39.4
Nov 5, 1:30 AM MST	218	2.84	39.6
Nov 5, 12:30 AM MST	218	2.84	39.7
Nov 4, 11:30 PM MST	222	2.85	39.9
Nov 4, 10:30 PM MST	218	2.84	40.3
Nov 4, 9:30 PM MST	222	2.85	40.5
Nov 4, 8:30 PM MST	222	2.85	40.6
Nov 4, 7:30 PM MST	222	2.85	41
Nov 4, 6:30 PM MST	218	2.84	41.2
Nov 4, 5:30 PM MST	222	2.85	41.4
Nov 4, 4:30 PM MST	222	2.85	41.5
Nov 4, 3:30 PM MST	218	2.84	41.4

Checked Nov 5, 6:20 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.

Blackfoot R ab Nevada Cr nr Helmville MT
USGS 12335100 · MT · live flow · gauge height · 11.1 mi
Reading the gauge…
Clark Fork at Goldcreek MT
USGS 12324680 · MT · live flow · gauge height · 15.8 mi
Reading the gauge…
NF Blackfoot R ab Dry Gulch nr Ovando MT
USGS 12338300 · MT · live flow · gauge height · water temperature · 16.7 mi
Reading the gauge…
Flint Creek near Drummond MT
USGS 12331500 · MT · live flow · gauge height · 19.4 mi
Reading the gauge…
Little Blackfoot River near Garrison MT
USGS 12324590 · MT · live flow · gauge height · water temperature · 20.3 mi
Reading the gauge…
Clark Fork ab Little Blackfoot R nr Garrison MT
USGS 12324400 · MT · live flow · gauge height · water temperature · 20.9 mi
Reading the gauge…
Clark Fork near Drummond MT
USGS 12331800 · MT · live flow · gauge height · 24.2 mi
Reading the gauge…
Clark Fork at Deer Lodge MT
USGS 12324200 · MT · live flow · gauge height · water temperature · 28.9 mi
Reading the gauge…

Quick picks: our 2,852 waters by state

Each state opens its USGS gauges and our water pages there; a water opens the live cards for its gauges, or the NOAA tides for flats and surf.

Search covers 11,178 USGS stream gauges that reported discharge, gauge height or water temperature in the 183 days before 2026-10-23 (USGS series catalog); readings are fetched live when a gauge is shown.

Where these numbers come from

Discharge, gauge height, water temperature and water quality: U.S. Geological Survey readings (provisional, can be revised), cached for 15 minutes. Where USGS publishes a gauge’s flow only once a day, the latest daily mean is shown with its date.
Normal range: the 25th to 75th percentile of daily mean flow for the same calendar day over the gauge’s record (USGS daily statistics), classed as USGS does (hyswap).
Temperature guidance for trout quotes the gauge’s own state fish and wildlife agency; where we found none, it says so and quotes federal guidance (National Park Service, U.S. Fish and Wildlife Service). Cold-water safety quotes the NWS; dissolved oxygen and pH are read against EPA criteria. Each line names its source.
Flood stage and forecasts: the National Weather Service’s National Water Prediction Service and its Turn Around Don’t Drown guidance. Tides: NOAA Tides & Currents.

General guidance, not a fishing forecast, a safety guarantee or a statement about access. Planning a trip? The trip planner shows these readings on every day you fish a water.