months, stage and discharge may be affected by ice in the
channel. Data values reported on these pages may be
significantly higher or lower than the actual streamflow.
Adjustments to the data will be done after detailed analyses.
Ice affected values identified on graphs (•) may be viewed by choosing the table
output format. If you have questions about these values,
please contact the
Idaho Water Data Maintainer.
LOCATION.--Lat 45° 19'21", long 114° 26'24"
(NAD83), in NE1/4 SW1/4 sec.14, T.23 N., R.17 E., Lemhi County,
Bighorn Crags quad., Hydrologic Unit 17060203, Salmon National
Forest, on right bank 0.6 mi upstream from Owl Creek, 2.3 mi
downstream from Panther Creek, 9 mi southwest of Shoup, and at mile
DRAINAGE AREA.--6,239 mi2. Mean elevation, 7,140
PERIOD OF RECORD.--October 1944 to September 1981, October 2002 to
REVISED RECORDS.--WDR-US-2010: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is
3,153.7 ft above NGVD of 1929. Prior to Sept. 18, 1951, nonrecording
gage at different sites, approximately 1.3 mi upstream at different
REMARKS.--Diversions above station for irrigation of about 149,000
acres, of which about 1,200 acres are by withdrawals from groundwater
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 25,700
ft3/s June 18, 1974, gage height, 13.13 ft; minimum
discharge, known to be less than 600 ft3/s on Feb. 18,
2006, during period of ice effect.