USGS Surface Water for USA: Streamflow Measurements

USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources

Data Category:
Geographic Area:

Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

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 06190415 Mammoth Hot Sp outflow at Mammoth YNP

Park County, Wyoming

Hydrologic Unit Code 10070001

Latitude 44°58'08", Longitude 110°41'02" NAD27

Gage datum 5,920 feet above NGVD29

**Output formats**
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
Reselect output format

Output formats

HTML table with channel data

HTML table without channel data

Tab-separated data with channel data

Tab-separated data without channel data

Graph of data

Reselect output format

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
10B	1994-04-27 09:30	MDT	Yes	ks	USGS	2.98				Unspecified		NONE
10	1994-03-09 08:30	MST	Yes	KLS	USGS	3.29	0.59	-0.01	0.30	Fair	Clear	NONE
9	1993-08-15 10:10	MDT	Yes	RRS	USGS	3.15	0.57	0.01	0.30	Fair	Clear	NONE
8D	1993-06-28 18:10	MDT	Yes	ks	USGS	3.13				Unspecified		NONE
8C	1993-04-08 15:45	MDT	Yes	ks	USGS	2.52				Unspecified		NONE
8B	1992-10-20 12:30	MDT	Yes	ks /tm	USGS	1.83				Unspecified		NONE
8	1992-09-09 09:30	MDT	Yes	RRS/KLS	USGS	1.85	0.39	0.00	0.50	Fair	Clear	NONE
7C	1992-07-29 10:15	MDT	Yes	ks	USGS	1.70				Unspecified		NONE
7B	1992-02-05 13:15	MST	Yes	ks	USGS	1.45				Unspecified		NONE
7	1991-09-03 12:30	MDT	Yes	RRS	USGS	1.74	0.42	0.00	0.50	Fair	Clear	NONE
6B	1991-01-04 09:45	MST	Yes	as	USGS	1.58				Unspecified		NONE
6	1990-09-06 08:08	MDT	Yes	RRS/ARS	USGS	1.48	0.37	0.00	0.50	Fair	Clear	NONE
5	1990-05-17 12:20	MDT	Yes	ARS/RRS	USGS	1.63	0.39	0.00	0.40	Fair	Clear	NONE
4C	1989-09-11 12:45	MDT	Yes	as /jh	USGS	1.64				Unspecified		NONE
4B	1989-08-08 13:20	MDT	Yes	rs	USGS	1.24				Unspecified		NONE
4A	1989-08-08 07:45	MDT	Yes	rs	USGS	1.66				Unspecified		NONE
3D	1989-07-05 11:30	MDT	Yes	as	USGS	1.34				Unspecified		NONE
3C	1989-06-07 11:50	MDT	Yes	as	USGS	1.40				Unspecified		NONE
3B	1989-05-10 15:45	MDT	Yes	as	USGS	1.34				Unspecified		NONE
3A	1989-04-11 10:30	MDT	Yes	as	USGS	0.89				Unspecified		NONE
2D	1989-03-15 11:30	MST	Yes	as /jrk	USGS	0.84				Unspecified		NONE
2C	1989-02-14 17:00	MST	Yes	as	USGS	0.79				Unspecified		NONE
2B	1989-01-10 08:45	MST	Yes	as	USGS	0.95				Unspecified		NONE
2A	1988-12-06 17:00	MST	Yes	as	USGS	1.10				Unspecified		NONE
1D	1988-11-02 15:45	MST	Yes	plk/jrk	USGS	1.00				Unspecified		NONE
1C	1988-10-06 07:30	MDT	Yes	pk /jrk	USGS	0.00				Unspecified		NONE
1B	1988-09-14 07:45	MDT	Yes	rs	USGS	0.87				Unspecified		NONE
1A	1988-09-07 15:30	MDT	Yes	rs	USGS	0.73				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

10B

1994-04-27 09:30

MDT

Yes

USGS

2.98

Unspecified

NONE

1994-03-09 08:30

MST

Yes

KLS

USGS

3.29

0.59

-0.01

0.30

Fair

Clear

NONE

1993-08-15 10:10

MDT

Yes

RRS

USGS

3.15

0.57

0.01

0.30

Fair

Clear

NONE

1993-06-28 18:10

MDT

Yes

USGS

3.13

Unspecified

NONE

1993-04-08 15:45

MDT

Yes

USGS

2.52

Unspecified

NONE

1992-10-20 12:30

MDT

Yes

ks /tm

USGS

1.83

Unspecified

NONE

1992-09-09 09:30

MDT

Yes

RRS/KLS

USGS

1.85

0.39

0.00

0.50

Fair

Clear

NONE

1992-07-29 10:15

MDT

Yes

USGS

1.70

Unspecified

NONE

1992-02-05 13:15

MST

Yes

USGS

1.45

Unspecified

NONE

1991-09-03 12:30

MDT

Yes

RRS

USGS

1.74

0.42

0.00

0.50

Fair

Clear

NONE

1991-01-04 09:45

MST

Yes

USGS

1.58

Unspecified

NONE

1990-09-06 08:08

MDT

Yes

RRS/ARS

USGS

1.48

0.37

0.00

0.50

Fair

Clear

NONE

1990-05-17 12:20

MDT

Yes

ARS/RRS

USGS

1.63

0.39

0.00

0.40

Fair

Clear

NONE

1989-09-11 12:45

MDT

Yes

as /jh

USGS

1.64

Unspecified

NONE

1989-08-08 13:20

MDT

Yes

USGS

1.24

Unspecified

NONE

1989-08-08 07:45

MDT

Yes

USGS

1.66

Unspecified

NONE

1989-07-05 11:30

MDT

Yes

USGS

1.34

Unspecified

NONE

1989-06-07 11:50

MDT

Yes

USGS

1.40

Unspecified

NONE

1989-05-10 15:45

MDT

Yes

USGS

1.34

Unspecified

NONE

1989-04-11 10:30

MDT

Yes

USGS

0.89

Unspecified

NONE

1989-03-15 11:30

MST

Yes

as /jrk

USGS

0.84

Unspecified

NONE

1989-02-14 17:00

MST

Yes

USGS

0.79

Unspecified

NONE

1989-01-10 08:45

MST

Yes

USGS

0.95

Unspecified

NONE

1988-12-06 17:00

MST

Yes

USGS

1.10

Unspecified

NONE

1988-11-02 15:45

MST

Yes

plk/jrk

USGS

1.00

Unspecified

NONE

1988-10-06 07:30

MDT

Yes

pk /jrk

USGS

0.00

Unspecified

NONE

1988-09-14 07:45

MDT

Yes

USGS

0.87

Unspecified

NONE

1988-09-07 15:30

MDT

Yes

USGS

0.73

Unspecified

NONE