USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 12365500 Stillwater River near Kalispell MT

Flathead County, Montana

Hydrologic Unit Code 17010210

Latitude 48°16'58.16", Longitude 114°21'10.42" NAD83

Drainage area 338 square miles

Gage datum 2,950 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1922	1922-05-22	10.50⁶	2,750
1929	1929-05-26	5.80	1,190
1930	1930-06-04	5.86	1,410

Peak Gage-Height 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: 2025-07-19 12:15:08 EDT
0.29 0.28 nadww02