LOCATION.-- Lat 45<sup>o</sup>17'30", long 96<sup>o</sup>29'14", in SE1/4NW1/4 sec. 18, T.121 N., R.46 W., Grant County, 
     Hydrologic Unit 07020001, 1.5 mi west of Big Stone City, S.D., and 4.5 mi upstream from Big Stone Lake.

DRAINAGE AREA.-- 398 mi2.

PERIOD OF RECORD.-- March 1910 to November 1912 (no winter records), and March 1931 to current year.