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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
06335500 LITTLE MISSOURI RIVER AT MARMARTH, ND
LOCATION - Lat 46°17'52", long 103°55'03" referenced to North American Datum of 1983, in sec.30, T.133 N., R.105 W., Slope County, ND, Hydrologic Unit 10110203, near north side of west end of bridge on U.S. Highway 12 at the east edge of Marmarth, 1.5 mi downstream from Little Beaver Creek.
DRAINAGE AREA - 4,640 mi². approximately.
REVISIONS HISTORY - WSP 896: 1938-39. WSP 1086: 1943-44. WSP 1279: 1943(M), 1945-46, 1948. WSP 1439: 1950 (calendar year figures).
SURFACE-WATER RECORDS
PERIOD OF RECORD - DAILY DISCHARGE--March 1938 to current year.
PERIOD OF RECORD.--DAILY GAGE HEIGHT--October 2000 to current year.
PERIOD OF RECORD.--DAILY GAGE HEIGHT--October 2000 to current year.
GAGE -
Datum of the gage is 2,688.11 feet above North American Vertical Datum of 1988 (NAVD88) and 2,686.32 feet above National Geodetic Vertical Datum of 1929 (NGVD29).
For a detailed gage datum history, please use the blue ‘questions or comments’ tab on the bottom of the site’s monitoring location page.
REMARKS - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for estimated discharges, which are poor, unless otherwise noted.
EXTREMES OUTSIDE PERIOD OF RECORD - According to local residents, the greatest known flood prior to 1953 occurred in June 1907 (stage unknown). Other major floods reached stages of about 21.5 ft in March 1913, 19.7 ft in March 1920, and 20.2 ft in May 1929. These stages are not comparable to stages during period of record, owing to construction of levees.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 45,000 ft³/s, March 23, 1947, peak stage, 21.7 ft.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1950-51, 1970 to current year.
