USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 06153800 Milk River at Merrill Rd, nr Harlem, MT

Blaine County, Montana

Hydrologic Unit Code 10050004

Latitude 48°31'27.5", Longitude 108°51'18.6" NAD83

Drainage area 8,924.7 square miles

Gage datum 2,353 feet above NAVD88

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
16	2025-08-20 10:29:03	MDT	Yes	EEE	USGS	149	7.20	0.01	0.30	Good	VegetationLight	NONE
15	2025-06-25 12:04:17	MDT	Yes	EEE	USGS	194	7.61	0.04	1.05	Good	VegetationLight	NONE
14	2025-04-11 10:59:16	MDT	Yes	EEE	USGS	247	8.04	0.00	0.30	Good	Clear	NONE
13	2025-03-12 13:52:49	MDT	Yes	EEE	USGS	423	9.16	0.01	0.22	Good	DebrisLight	NONE
12	2025-01-15 12:35:28	MST	Yes	EEE/KBW	USGS	129	8.00	0.02	0.60	Poor	IceCover	NONE
11	2024-10-23 17:47:10	MDT	Yes	EEE	USGS	115	7.06	-0.01	0.65	Fair	DebrisLight	NONE
10	2024-08-14 14:34:14	MDT	Yes	EEE/RTH	USGS	138	7.24	-0.01	0.70	Fair	VegetationLight	NONE
9	2024-06-11 13:52:16	MDT	Yes	EEE	USGS	512	9.51	-0.01	0.30	Good	DebrisLight	NONE
8	2024-04-03 13:37:47	MDT	Yes	EEE	USGS	169	7.59	-0.02	1.00	Good	DebrisLight	NONE
7	2023-12-13 13:03:20	MST	Yes	EEE/JTL	USGS	51.0	6.55	0.00	0.70	Poor	IceShore	NONE
6	2023-11-14 12:11:28	MST	Yes	EEE	USGS	93.5	6.81	0.00	0.30	Fair	DebrisLight	NONE
5	2023-08-28 11:53:47	MDT	Yes	EEE/DJE	USGS	499	9.33	0.00	0.25	Good	DebrisLight	NONE
4	2023-07-12 17:55:39	MDT	Yes	EEE	USGS	556	9.66	-0.01	0.25	Fair	DebrisLight	NONE
3	2023-05-15 15:21:28	MDT	Yes	EEE	USGS	896	11.27	0.00	0.30	Good	DebrisLight	NONE
2	2023-04-18 17:03:59	MDT	Yes	EEE/PRW	USGS	3750	18.85	0.00	0.30	Fair	DebrisLight	NONE
1	2023-04-13 13:44:28	MDT	Yes	KDV/EJR	USGS	4880	21.79			Poor	Clear	NONE

Meas.
Number

Date Time

Time
Datum

Measurement
Used?

Who

Measuring
Agency

Stream
flow
(ft³/s)

Gage
Height
(ft)

GH
Change
(ft)

Meas.
Duration
(hr)

Meas.
Rated

Control

Flow
Adjust.
Code

2025-08-20 10:29:03

MDT

Yes

EEE

USGS

149

7.20

0.01

0.30

Good

VegetationLight

NONE

2025-06-25 12:04:17

MDT

Yes

EEE

USGS

194

7.61

0.04

1.05

Good

VegetationLight

NONE

2025-04-11 10:59:16

MDT

Yes

EEE

USGS

247

8.04

0.00

0.30

Good

Clear

NONE

2025-03-12 13:52:49

MDT

Yes

EEE

USGS

423

9.16

0.01

0.22

Good

DebrisLight

NONE

2025-01-15 12:35:28

MST

Yes

EEE/KBW

USGS

129

8.00

0.02

0.60

Poor

IceCover

NONE

2024-10-23 17:47:10

MDT

Yes

EEE

USGS

115

7.06

-0.01

0.65

Fair

DebrisLight

NONE

2024-08-14 14:34:14

MDT

Yes

EEE/RTH

USGS

138

7.24

-0.01

0.70

Fair

VegetationLight

NONE

2024-06-11 13:52:16

MDT

Yes

EEE

USGS

512

9.51

-0.01

0.30

Good

DebrisLight

NONE

2024-04-03 13:37:47

MDT

Yes

EEE

USGS

169

7.59

-0.02

1.00

Good

DebrisLight

NONE

2023-12-13 13:03:20

MST

Yes

EEE/JTL

USGS

51.0

6.55

0.00

0.70

Poor

IceShore

NONE

2023-11-14 12:11:28

MST

Yes

EEE

USGS

93.5

6.81

0.00

0.30

Fair

DebrisLight

NONE

2023-08-28 11:53:47

MDT

Yes

EEE/DJE

USGS

499

9.33

0.00

0.25

Good

DebrisLight

NONE

2023-07-12 17:55:39

MDT

Yes

EEE

USGS

556

9.66

-0.01

0.25

Fair

DebrisLight

NONE

2023-05-15 15:21:28

MDT

Yes

EEE

USGS

896

11.27

0.00

0.30

Good

DebrisLight

NONE

2023-04-18 17:03:59

MDT

Yes

EEE/PRW

USGS

3750

18.85

0.00

0.30

Fair

DebrisLight

NONE

2023-04-13 13:44:28

MDT

Yes

KDV/EJR

USGS

4880

21.79

Poor

Clear

NONE