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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.

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13 USGS gauges near your location (within 30 miles)

HENRYS FORK NR ASHTON ID

USGS 13046000

Caution: Low water: go quiet and stealthy

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

Discharge: 609 ft³/s
Gauge height: 2.72 ft

Much below 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, 4:15 PM MST	609	2.72
Nov 5, 3:15 PM MST	609	2.72
Nov 5, 2:15 PM MST	609	2.72
Nov 5, 1:15 PM MST	609	2.72
Nov 5, 12:15 PM MST	609	2.72
Nov 5, 11:15 AM MST	609	2.72
Nov 5, 10:15 AM MST	609	2.72
Nov 5, 9:15 AM MST	609	2.72
Nov 5, 8:15 AM MST	609	2.72
Nov 5, 7:15 AM MST	609	2.72
Nov 5, 6:15 AM MST	609	2.72
Nov 5, 5:15 AM MST	609	2.72
Nov 5, 4:15 AM MST	602	2.71
Nov 5, 3:15 AM MST	609	2.72
Nov 5, 2:15 AM MST	609	2.72
Nov 5, 1:15 AM MST	602	2.71
Nov 5, 12:15 AM MST	609	2.72
Nov 4, 11:15 PM MST	609	2.72
Nov 4, 10:15 PM MST	609	2.72
Nov 4, 9:15 PM MST	609	2.72
Nov 4, 8:15 PM MST	609	2.72
Nov 4, 7:15 PM MST	609	2.72
Nov 4, 6:15 PM MST	609	2.72
Nov 4, 5:15 PM MST	609	2.72
Nov 4, 4:15 PM MST	609	2.72
Nov 4, 3:15 PM MST	609	2.72
Nov 4, 2:15 PM MST	615	2.73

Reading Nov 5, 4:15 PM MST · checked 5:19 PM MST

Open full screen USGS NWS

On our page for Henry's Fork

11.8 miles away in a straight line

FALL RIVER NR CHESTER ID

USGS 13049500

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

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

Discharge: 477 ft³/s
Gauge height: 2.32 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, 4:15 PM MST	477	2.32
Nov 5, 3:15 PM MST	477	2.32
Nov 5, 2:15 PM MST	477	2.32
Nov 5, 1:15 PM MST	477	2.32
Nov 5, 12:15 PM MST	477	2.32
Nov 5, 11:15 AM MST	477	2.32
Nov 5, 10:15 AM MST	477	2.32
Nov 5, 9:15 AM MST	477	2.32
Nov 5, 8:15 AM MST	477	2.32
Nov 5, 7:15 AM MST	477	2.32
Nov 5, 6:15 AM MST	484	2.33
Nov 5, 5:15 AM MST	477	2.32
Nov 5, 4:15 AM MST	477	2.32
Nov 5, 3:15 AM MST	477	2.32
Nov 5, 2:15 AM MST	477	2.32
Nov 5, 1:15 AM MST	477	2.32
Nov 5, 12:15 AM MST	477	2.32
Nov 4, 11:15 PM MST	484	2.33
Nov 4, 10:15 PM MST	490	2.34
Nov 4, 9:15 PM MST	490	2.34
Nov 4, 8:15 PM MST	490	2.34
Nov 4, 7:15 PM MST	490	2.34
Nov 4, 6:15 PM MST	490	2.34
Nov 4, 5:15 PM MST	490	2.34
Nov 4, 4:15 PM MST	490	2.34
Nov 4, 3:15 PM MST	490	2.34
Nov 4, 2:15 PM MST	503	2.36

HENRYS FORK NR ISLAND PARK ID

USGS 13042500

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

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

Discharge: 84.3 ft³/s
Gauge height: 2.09 ft

Below 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, 4:45 PM MST	84.3	2.09
Nov 5, 3:45 PM MST	84.3	2.09
Nov 5, 2:45 PM MST	84.3	2.09
Nov 5, 1:45 PM MST	84.3	2.09
Nov 5, 12:45 PM MST	84.3	2.09
Nov 5, 11:45 AM MST	86	2.1
Nov 5, 10:45 AM MST	84.3	2.09
Nov 5, 9:45 AM MST	84.3	2.09
Nov 5, 8:45 AM MST	84.3	2.09
Nov 5, 7:45 AM MST	84.3	2.09
Nov 5, 6:45 AM MST	84.3	2.09
Nov 5, 5:45 AM MST	84.3	2.09
Nov 5, 4:45 AM MST	84.3	2.09
Nov 5, 3:45 AM MST	84.3	2.09
Nov 5, 2:45 AM MST	84.3	2.09
Nov 5, 1:45 AM MST	84.3	2.09
Nov 5, 12:45 AM MST	84.3	2.09
Nov 4, 11:45 PM MST	84.3	2.09
Nov 4, 10:45 PM MST	86	2.1
Nov 4, 9:45 PM MST	84.3	2.09
Nov 4, 8:45 PM MST	86	2.1
Nov 4, 7:45 PM MST	84.3	2.09
Nov 4, 6:45 PM MST	84.3	2.09
Nov 4, 5:45 PM MST	84.3	2.09
Nov 4, 4:45 PM MST	84.3	2.09
Nov 4, 3:45 PM MST	84.3	2.09
Nov 4, 2:45 PM MST	84.3	2.09

FALL RIVER NR ASHTON ID

USGS 13047600

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

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

Discharge: 461 ft³/s
Gauge height: 4.11 ft

Below 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, 4:45 PM MST	461	4.11
Nov 5, 3:45 PM MST	461	4.11
Nov 5, 2:45 PM MST	461	4.11
Nov 5, 1:45 PM MST	461	4.11
Nov 5, 12:45 PM MST	466	4.12
Nov 5, 11:45 AM MST	466	4.12
Nov 5, 10:45 AM MST	461	4.11
Nov 5, 9:45 AM MST	466	4.12
Nov 5, 8:45 AM MST	466	4.12
Nov 5, 7:45 AM MST	461	4.11
Nov 5, 6:45 AM MST	461	4.11
Nov 5, 5:45 AM MST	466	4.12
Nov 5, 4:45 AM MST	466	4.12
Nov 5, 3:45 AM MST	461	4.11
Nov 5, 2:45 AM MST	461	4.11
Nov 5, 1:45 AM MST	461	4.11
Nov 5, 12:45 AM MST	461	4.11
Nov 4, 11:45 PM MST	466	4.12
Nov 4, 10:45 PM MST	466	4.12
Nov 4, 9:45 PM MST	461	4.11
Nov 4, 8:45 PM MST	461	4.11
Nov 4, 7:45 PM MST	461	4.11
Nov 4, 6:45 PM MST	466	4.12
Nov 4, 5:45 PM MST	471	4.13
Nov 4, 4:45 PM MST	471	4.13
Nov 4, 3:45 PM MST	471	4.13
Nov 4, 2:45 PM MST	471	4.13

HENRYS FORK AT ST ANTHONY ID

USGS 13050500

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

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

Discharge: 1,170 ft³/s
Gauge height: 3.46 ft

Below 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, 4:45 PM MST	1,170	3.46
Nov 5, 3:45 PM MST	1,160	3.45
Nov 5, 2:45 PM MST	1,130	3.43
Nov 5, 1:45 PM MST	1,130	3.43
Nov 5, 12:45 PM MST	1,160	3.45
Nov 5, 11:45 AM MST	1,150	3.44
Nov 5, 10:45 AM MST	1,160	3.45
Nov 5, 9:45 AM MST	1,160	3.45
Nov 5, 8:45 AM MST	1,170	3.46
Nov 5, 7:45 AM MST	1,160	3.45
Nov 5, 6:45 AM MST	1,160	3.45
Nov 5, 5:45 AM MST	1,160	3.45
Nov 5, 4:45 AM MST	1,160	3.45
Nov 5, 3:45 AM MST	1,130	3.43
Nov 5, 2:45 AM MST	1,160	3.45
Nov 5, 1:45 AM MST	1,170	3.46
Nov 5, 12:45 AM MST	1,160	3.45
Nov 4, 11:45 PM MST	1,160	3.45
Nov 4, 10:45 PM MST	1,190	3.47
Nov 4, 9:45 PM MST	1,160	3.45
Nov 4, 8:45 PM MST	1,170	3.46
Nov 4, 7:45 PM MST	1,190	3.47
Nov 4, 6:45 PM MST	1,150	3.44
Nov 4, 5:45 PM MST	1,190	3.47
Nov 4, 4:45 PM MST	1,200	3.48
Nov 4, 3:45 PM MST	1,170	3.46
Nov 4, 2:45 PM MST	1,190	3.47

TETON RIVER NR ST ANTHONY ID

USGS 13055000

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

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

Discharge: 377 ft³/s
Gauge height: 2.22 ft

Below 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, 4:15 PM MST	377	2.22
Nov 5, 3:15 PM MST	377	2.22
Nov 5, 2:15 PM MST	381	2.23
Nov 5, 1:15 PM MST	381	2.23
Nov 5, 12:15 PM MST	381	2.23
Nov 5, 11:15 AM MST	381	2.23
Nov 5, 10:15 AM MST	385	2.24
Nov 5, 9:15 AM MST	381	2.23
Nov 5, 8:15 AM MST	385	2.24
Nov 5, 7:15 AM MST	385	2.24
Nov 5, 6:15 AM MST	385	2.24
Nov 5, 5:15 AM MST	385	2.24
Nov 5, 4:15 AM MST	385	2.24
Nov 5, 3:15 AM MST	389	2.25
Nov 5, 2:15 AM MST	389	2.25
Nov 5, 1:15 AM MST	389	2.25
Nov 5, 12:15 AM MST	389	2.25
Nov 4, 11:15 PM MST	389	2.25
Nov 4, 10:15 PM MST	393	2.26
Nov 4, 9:15 PM MST	393	2.26
Nov 4, 8:15 PM MST	393	2.26
Nov 4, 7:15 PM MST	397	2.27
Nov 4, 6:15 PM MST	397	2.27
Nov 4, 5:15 PM MST	397	2.27
Nov 4, 4:15 PM MST	401	2.28
Nov 4, 3:15 PM MST	401	2.28
Nov 4, 2:15 PM MST	401	2.28

FALL RIVER NR SQUIRREL ID

USGS 13047500

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

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

Discharge: 223 ft³/s
Gauge height: 0.71 ft

Below 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, 4:45 PM MST	223	0.71
Nov 5, 3:45 PM MST	223	0.71
Nov 5, 2:45 PM MST	223	0.71
Nov 5, 1:45 PM MST	226	0.72
Nov 5, 12:45 PM MST	226	0.72
Nov 5, 11:45 AM MST	226	0.72
Nov 5, 10:45 AM MST	226	0.72
Nov 5, 9:45 AM MST	226	0.72
Nov 5, 8:45 AM MST	226	0.72
Nov 5, 7:45 AM MST	226	0.72
Nov 5, 6:45 AM MST	223	0.71
Nov 5, 5:45 AM MST	223	0.71
Nov 5, 4:45 AM MST	226	0.72
Nov 5, 3:45 AM MST	226	0.72
Nov 5, 2:45 AM MST	226	0.72
Nov 5, 1:45 AM MST	226	0.72
Nov 5, 12:45 AM MST	226	0.72
Nov 4, 11:45 PM MST	226	0.72
Nov 4, 10:45 PM MST	226	0.72
Nov 4, 9:45 PM MST	226	0.72
Nov 4, 8:45 PM MST	226	0.72
Nov 4, 7:45 PM MST	230	0.73
Nov 4, 6:45 PM MST	226	0.72
Nov 4, 5:45 PM MST	226	0.72
Nov 4, 4:45 PM MST	226	0.72
Nov 4, 3:45 PM MST	226	0.72
Nov 4, 2:45 PM MST	230	0.73

NF TETON RIVER NR SUGAR CITY ID

USGS 13055250

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

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

Discharge: 53.5 ft³/s
Gauge height: 3.66 ft

Below 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, 4:30 PM MST	53.5	3.66
Nov 5, 3:30 PM MST	54.5	3.67
Nov 5, 2:30 PM MST	54.5	3.67
Nov 5, 1:30 PM MST	52.6	3.65
Nov 5, 12:30 PM MST	51.7	3.64
Nov 5, 11:30 AM MST	54.5	3.67
Nov 5, 10:30 AM MST	53.5	3.66
Nov 5, 9:30 AM MST	52.6	3.65
Nov 5, 8:30 AM MST	50.9	3.63
Nov 5, 7:30 AM MST	50	3.62
Nov 5, 6:30 AM MST	49.1	3.61
Nov 5, 5:30 AM MST	50.9	3.63
Nov 5, 4:30 AM MST	50	3.62
Nov 5, 3:30 AM MST	50	3.62
Nov 5, 2:30 AM MST	52.6	3.65
Nov 5, 1:30 AM MST	50.9	3.63
Nov 5, 12:30 AM MST	49.1	3.61
Nov 4, 11:30 PM MST	50.9	3.63
Nov 4, 10:30 PM MST	51.7	3.64
Nov 4, 9:30 PM MST	50	3.62
Nov 4, 8:30 PM MST	49.1	3.61
Nov 4, 7:30 PM MST	50.9	3.63
Nov 4, 6:30 PM MST	50.9	3.63
Nov 4, 5:30 PM MST	52.6	3.65
Nov 4, 4:30 PM MST	52.6	3.65
Nov 4, 3:30 PM MST	51.7	3.64
Nov 4, 2:30 PM MST	51.7	3.64

FALL RIVER AB YELLOWSTONE CANAL NR SQUIRREL ID

USGS 13046995

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

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

Discharge: 451 ft³/s
Gauge height: 5.42 ft

Below 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, 4:45 PM MST	451	5.42
Nov 5, 3:45 PM MST	451	5.42
Nov 5, 2:45 PM MST	451	5.42
Nov 5, 1:45 PM MST	451	5.42
Nov 5, 12:45 PM MST	455	5.43
Nov 5, 11:45 AM MST	455	5.43
Nov 5, 10:45 AM MST	455	5.43
Nov 5, 9:45 AM MST	455	5.43
Nov 5, 8:45 AM MST	455	5.43
Nov 5, 7:45 AM MST	455	5.43
Nov 5, 6:45 AM MST	455	5.43
Nov 5, 5:45 AM MST	455	5.43
Nov 5, 4:45 AM MST	455	5.43
Nov 5, 3:45 AM MST	455	5.43
Nov 5, 2:45 AM MST	459	5.44
Nov 5, 1:45 AM MST	455	5.43
Nov 5, 12:45 AM MST	459	5.44
Nov 4, 11:45 PM MST	459	5.44
Nov 4, 10:45 PM MST	459	5.44
Nov 4, 9:45 PM MST	459	5.44
Nov 4, 8:45 PM MST	459	5.44
Nov 4, 7:45 PM MST	459	5.44
Nov 4, 6:45 PM MST	459	5.44
Nov 4, 5:45 PM MST	459	5.44
Nov 4, 4:45 PM MST	459	5.44
Nov 4, 3:45 PM MST	459	5.44
Nov 4, 2:45 PM MST	463	5.45

Red Rock Cr ab Lakes, nr Lakeview, MT
USGS 06006000
No current reading. USGS answered but returned no recent value for this gauge (ice, maintenance or a seasonal gauge).
Open full screen USGS NWS
27.1 miles away in a straight line

SF TETON RIVER NEAR REXBURG ID

USGS 13055340

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

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

Discharge: 158 ft³/s
Gauge height: 5.3 ft

Normal for Nov 5 Falling · 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, 5:00 PM MST	158	5.3
Nov 5, 4:00 PM MST	158	5.3
Nov 5, 3:00 PM MST	160	5.31
Nov 5, 2:00 PM MST	160	5.31
Nov 5, 1:00 PM MST	160	5.31
Nov 5, 12:00 PM MST	163	5.32
Nov 5, 11:00 AM MST	163	5.32
Nov 5, 10:00 AM MST	163	5.32
Nov 5, 9:00 AM MST	165	5.33
Nov 5, 8:00 AM MST	165	5.33
Nov 5, 7:00 AM MST	165	5.33
Nov 5, 6:00 AM MST	167	5.34
Nov 5, 5:00 AM MST	167	5.34
Nov 5, 4:00 AM MST	169	5.35
Nov 5, 3:00 AM MST	172	5.36
Nov 5, 2:00 AM MST	174	5.37
Nov 5, 1:00 AM MST	174	5.37
Nov 5, 12:00 AM MST	176	5.38
Nov 4, 11:00 PM MST	179	5.39
Nov 4, 10:00 PM MST	179	5.39
Nov 4, 9:00 PM MST	181	5.4
Nov 4, 8:00 PM MST	181	5.4
Nov 4, 7:00 PM MST	181	5.4
Nov 4, 6:00 PM MST	184	5.41
Nov 4, 5:00 PM MST	184	5.41
Nov 4, 4:00 PM MST	184	5.41
Nov 4, 3:00 PM MST	184	5.41

HENRYS FORK NR LAKE ID

USGS 13039500

Caution: Low water: go quiet and stealthy

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

Discharge: 0.29 ft³/s
Gauge height: 4.34 ft

Lowest for this date on record 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, 4:45 PM MST	0.29	4.34
Nov 5, 3:45 PM MST	0.29	4.34
Nov 5, 2:45 PM MST	0.25	4.33
Nov 5, 1:45 PM MST	0.25	4.33
Nov 5, 12:45 PM MST	0.25	4.33
Nov 5, 11:45 AM MST	0.25	4.33
Nov 5, 10:45 AM MST	0.25	4.33
Nov 5, 9:45 AM MST	0.25	4.33
Nov 5, 8:45 AM MST	0.25	4.33
Nov 5, 7:45 AM MST	0.29	4.34
Nov 5, 6:45 AM MST	0.25	4.33
Nov 5, 5:45 AM MST	0.25	4.33
Nov 5, 4:45 AM MST	0.29	4.34
Nov 5, 3:45 AM MST	0.29	4.34
Nov 5, 2:45 AM MST	0.25	4.33
Nov 5, 1:45 AM MST	0.25	4.33
Nov 5, 12:45 AM MST	0.25	4.33
Nov 4, 11:45 PM MST	0.32	4.35
Nov 4, 10:45 PM MST	0.25	4.33
Nov 4, 9:45 PM MST	0.29	4.34
Nov 4, 8:45 PM MST	0.29	4.34
Nov 4, 7:45 PM MST	0.29	4.34
Nov 4, 6:45 PM MST	0.29	4.34
Nov 4, 5:45 PM MST	0.32	4.35
Nov 4, 4:45 PM MST	0.29	4.34
Nov 4, 3:45 PM MST	0.29	4.34
Nov 4, 2:45 PM MST	0.29	4.34

Checked Nov 5, 5:19 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.

HENRYS FORK NR ASHTON ID
USGS 13046000 · ID · live flow · gauge height · 11.8 mi
Reading the gauge…
FALL RIVER NR CHESTER ID
USGS 13049500 · ID · live flow · gauge height · 14.4 mi
Reading the gauge…
HENRYS FORK NR ISLAND PARK ID
USGS 13042500 · ID · live flow · gauge height · 17.1 mi
Reading the gauge…
FALL RIVER NR ASHTON ID
USGS 13047600 · ID · live flow · gauge height · 17.1 mi
Reading the gauge…
HENRYS FORK AT ST ANTHONY ID
USGS 13050500 · ID · live flow · gauge height · 18 mi
Reading the gauge…
TETON RIVER NR ST ANTHONY ID
USGS 13055000 · ID · live flow · gauge height · 20.5 mi
Reading the gauge…
FALL RIVER NR SQUIRREL ID
USGS 13047500 · ID · live flow · gauge height · 21.3 mi
Reading the gauge…
NF TETON RIVER NR SUGAR CITY ID
USGS 13055250 · ID · live flow · gauge height · 24.4 mi
Reading the gauge…
FALL RIVER AB YELLOWSTONE CANAL NR SQUIRREL ID
USGS 13046995 · ID · live flow · gauge height · 25.4 mi
Reading the gauge…
Red Rock Cr ab Lakes, nr Lakeview, MT
USGS 06006000 · MT · live flow · gauge height · water temperature · 27.1 mi
Reading the gauge…
SF TETON RIVER NEAR REXBURG ID
USGS 13055340 · ID · live flow · gauge height · 28.1 mi
Reading the gauge…
HENRYS FORK NR LAKE ID
USGS 13039500 · ID · live flow · gauge height · 28.6 mi
Reading the gauge…

1 more gauge

HENRYS LAKE NR LAKE IDUSGS 13039000 · ID · no flow · gauge height · 28.7 mi

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.