Description, qualifying comments, and acceptable water years.
Drainage area is 10709 sq.mi. Datum is 2600.37 ft.
Located in hydrologic unit 17010204 at Latitude: 47:18:07N Longitude: 115:05:11W
Station is in the state of MT (county code 061) and serviced by the MT office.
Channel slope is 10.80 feet/mile
Stream length is 264.20 miles
Mean basin elevation is 5460.00 feet above National Geodetic Vertical Datum
Percent of contributing drainage area covered by
Storage: 0.31% Lakes: 0.31% Forests: 80.10% Glaciers: N.A.%
Soil infiltration index is 6.40 inches
Annual precipitation is 18.00 inches
Precipitation intensity is 1.60 inches/24 hour (expected on the average once each two years)
January minimum temperature is 12.00 degrees Fahrenheit
This is a National Water Conditions station.
Comments and qualifications on the data:
Affected by reservoir and irrigation witdrawals.
Daily and longer averages for 72 water years are acceptable (all years except partial years).
A water year with acceptable data is indicated by an asterisk in the time line, which spans 1874 through 1988.
Water year
1 1 1 1 1 1 1 1 1 1 1 1 1
8 8 8 9 9 9 9 9 9 9 9 9 9
7 8 9 0 1 2 3 4 5 6 7 8 8
4-----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5--8
......................................************.....************************************************************
The streamflow data
Daily values, monthly mean values, and yearly mean values
of streamflow data are available in tablular form.
Select the desired option from the list below.
a. Table of daily data (249K text)
b. Table of monthly data
c. Table of annual data
The data tables do not have column heading for ease of reading into statistical programs.
For a detailed description of the format of the data tables,
select the corresponding file from the list below.
a. Format of the daily data table
b. Format of the monthly data table
c. Format of the yearly data table