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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 2025
04026740 MARENGO RIVER NEAR MELLEN, WI
LOCATION - Lat 46°25'00", long 90°44'10" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.34, T.46 N., R.3 W., Ashland County, WI, Hydrologic Unit 04010302, located on the SW side of Government Rd and Marengo River Crossing. Datum of gage is 700.95 ft NAVD 88, established via propeller aeropoint survey on Aug. 11, 2021 with an accuracy of +-.02 ft.
DRAINAGE AREA - 195 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 11th, 2021 to current year.
GAGE - Water stage recorder and Crest Stage Gage. Datum of gage is 700.95 ft NAVD 88.
COOPERATION - Ashland County, WI and Bad River Tribe
REMARKS - Records are considered good except for estimated discharges which are poor and other periods as noted.
