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DESCRIPTION:

Latitude 46°23'04.54",   Longitude 105°50'43.88"   NAD83

Custer County, Montana, Hydrologic Unit 10090102

Drainage area: 5,404 square miles

Datum of gage: 2,360 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2001-10-01	2017-06-25
Daily Data
Temperature, water, degrees Celsius	1999-09-17	2016-11-02	5496
Discharge, cubic feet per second	1938-04-01	2017-06-24	22394
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2004-04-29	2017-06-24	8743
Suspended sediment concentration, milligrams per liter	1977-08-31	1985-12-04	3018
Suspended sediment discharge, short tons per day	1977-08-31	1985-12-04	3018
Sodium adsorption ratio (SAR), water, estimated by regression equation, number	2005-10-01	2013-04-09	4672
Daily Statistics
Temperature, water, degrees Celsius	1999-09-17	2003-09-29	1046
Discharge, cubic feet per second	1938-04-01	2016-10-23	22150
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2004-04-29	2016-10-30	2691
Suspended sediment concentration, milligrams per liter	1977-08-31	1985-12-04	3018
Suspended sediment discharge, short tons per day	1977-08-31	1985-12-04	3018
Sodium adsorption ratio (SAR), water, estimated by regression equation, number	2004-04-29	2013-04-09	1814
Monthly Statistics
Temperature, water, degrees Celsius	1999-09	2003-09
Discharge, cubic feet per second	1938-04	2016-10
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2004-04	2016-10
Suspended sediment concentration, milligrams per liter	1977-08	1985-12
Suspended sediment discharge, short tons per day	1977-08	1985-12
Sodium adsorption ratio (SAR), water, estimated by regression equation, number	2004-04	2013-04
Annual Statistics
Temperature, water, degrees Celsius	1999	2003
Discharge, cubic feet per second	1938	2017
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2004	2017
Suspended sediment concentration, milligrams per liter	1977	1986
Suspended sediment discharge, short tons per day	1977	1986
Sodium adsorption ratio (SAR), water, estimated by regression equation, number	2004	2013
Peak streamflow	1938-06-01	2016-09-25	75
Field measurements	1967-06-19	2017-05-19	437
Field/Lab water-quality samples	1959-10-01	2016-10-25	848
Water-Year Summary	2006	2016	11
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1991-10-01	2007-09-30	141075

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