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  • Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance from the White House, the CDC, and state and local authorities.

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LOCATION.--Lat 44° 04'00", long 113° 50'25"(Rev.)(NAD83), in NE1/4 SW1/4 sec.34, T.9 N., R.22 E., Custer County, Hydrologic Unit 17040218, Elkhorn Creek quad., on downstream side of left bank abutment of highway bridge, 0.7 mi upstream from mouth, 3 mi downstream from damsite of Thousand Springs Irrigation and Land Co., and 2.5 mi southeast of Chilly.

DRAINAGE AREA.--145 mi2.

PERIOD OF RECORD.--May 1920 to September 1922 (discontinued). December 1912 to February 1913, and January to September 1914, at site 2.75 mi upstream. Except for a few small springs, which enter between, flows are comparable.

GAGE.--Staff gage. Elevation of gage is 6,220 ft above NGVD of 1929, from topographic map. Nov. 26, 1912 to Feb. 28, 1913, and Jan. 25 to Sept. 30, 1914, staff gage 2.75 mi upstream at different datum.

REMARKS.--Some diversions for irrigation above station; amount diverted unknown.

COOPERATION.--Several discharge measurements furnished by water commissioner for Big Lost River.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 85 ft3/s Aug. 18, 1922, gage height, 1.63 ft; minimum observed, 1.0 ft3/s Dec. 22, 1912, gage height, 2.7 ft.


This station managed by the Idaho Falls Field Office.

Available Parameters Available Period
2019-03-27  2020-04-05
2020-03-13  2020-04-05


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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 24.4 04-05-2020   18:15 MDT
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Apr 5 based on 1 water years of record more
Mean Min
Median Max
Most Recent
Value Apr 5
23 23.5 23 23.5 24.4

Gage height, feet

Most recent instantaneous value: 6.79 04-05-2020   18:15 MDT
Graph of  Gage height, feet

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