USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 12339800 Blackfoot River near Potomac MT

Missoula County, Montana

Hydrologic Unit Code 17010203

Latitude 46°57'10.61", Longitude 113°34'02.46" NAD83

Drainage area 2,040 square miles

Gage datum 3,533.36 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1957	1957-05-23	7.48	8,430
1958	1958-05-23	7.43	8,560
1959	1959-06-15	8.54	10,900
1960	1960-06-04	6.21	6,330
1961	1961-05-27	7.75	9,180
1962	1962-05-25	7.05	8,350
1963	1963-05-27	5.16²	4,640
1964	1964-06-10	11.33	17,500
1965	1965-06-13	7.48	8,980
1975	1975-06-20		15,100^7,8

Peak Gage-Height Qualification Codes.

Peak Streamflow Qualification Codes.

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

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2024-12-21 21:45:41 EST
0.21 0.18 nadww01