USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 06811760 Tarkio River near Elliott, IA

Montgomery County, Iowa

Hydrologic Unit Code 10240005

Latitude 41°06'06", Longitude 95°06'09" NAD27

Drainage area 10.7 square miles

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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
13	2015-06-05 12:25	CDT	Yes	DLH/MJN	USGS	21.4	2.71	0.00	0.40	Good	Clear	NONE
12	1998-06-14 16:00	CDT	Yes	JGG	USGS	2720	12.96	-0.11	0.20	Poor	Clear	NONE
11	1998-06-14 15:50	CDT	Yes	JGG	USGS	2850	13.07	-0.12	0.20	Poor	Clear	NONE
10	1998-06-14 15:40	CDT	Yes	JGG	USGS	3000	13.18	-0.12	0.20	Poor	Clear	NONE
9	1993-07-22 13:15	CDT	Yes	RLK	USGS	1120	10.36	-0.09	0.30	Poor	Clear	NONE
8	1987-07-09 10:40	CDT	Yes	JRS	USGS	109	2.86	-0.30	0.30	Poor		NONE
7	1987-05-26 -- --	--	Yes	PJS/DAE	USGS	3210	12.26			Unspecified		NONE
6	1967-06-20 23:00	CST	Yes	REB/STE	USGS	50.4	2.65	-0.10	0.40	Good		NONE
5	1964-04-28 -- --	--	Yes	SAB/RID	USGS	7.30	2.65	0.00	0.50	Poor		NONE
4	1963-03-11 -- --	--	Yes	STE	USGS	217	5.69	0.20	0.80	Fair		NONE
3	1955-03-02 -- --	--	Yes	KAL	USGS	128	6.04	0.29	0.40	Poor		NONE
2	1954-08-23 -- --	--	Yes	LAR/SCH	USGS	62.8	4.40	0.01	0.30	Good		NONE
1	1952-06-22 -- --	--	Yes	N/A	USGS	1220	11.88			Unspecified		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

2015-06-05 12:25

CDT

Yes

DLH/MJN

USGS

21.4

2.71

0.00

0.40

Good

Clear

NONE

1998-06-14 16:00

CDT

Yes

JGG

USGS

2720

12.96

-0.11

0.20

Poor

Clear

NONE

1998-06-14 15:50

CDT

Yes

JGG

USGS

2850

13.07

-0.12

0.20

Poor

Clear

NONE

1998-06-14 15:40

CDT

Yes

JGG

USGS

3000

13.18

-0.12

0.20

Poor

Clear

NONE

1993-07-22 13:15

CDT

Yes

RLK

USGS

1120

10.36

-0.09

0.30

Poor

Clear

NONE

1987-07-09 10:40

CDT

Yes

JRS

USGS

109

2.86

-0.30

0.30

Poor

NONE

1987-05-26 -- --

Yes

PJS/DAE

USGS

3210

12.26

Unspecified

NONE

1967-06-20 23:00

CST

Yes

REB/STE

USGS

50.4

2.65

-0.10

0.40

Good

NONE

1964-04-28 -- --

Yes

SAB/RID

USGS

7.30

2.65

0.00

0.50

Poor

NONE

1963-03-11 -- --

Yes

STE

USGS

217

5.69

0.20

0.80

Fair

NONE

1955-03-02 -- --

Yes

KAL

USGS

128

6.04

0.29

0.40

Poor

NONE

1954-08-23 -- --

Yes

LAR/SCH

USGS

62.8

4.40

0.01

0.30

Good

NONE

1952-06-22 -- --

Yes

N/A

USGS

1220

11.88

Unspecified

NONE

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Iowa Water Data Support Team
Page Last Modified: 2025-12-14 13:04:14 EST
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