USGS Water-Year Summary 2023
06061500 PRICKLY PEAR CREEK NEAR CLANCY, MT
LOCATION - Lat 46°31'08.75", long 111°56'48.43" referenced to North American Datum of 1983, Jefferson County, MT, Hydrologic Unit 10030101, on right bank 3.5 mi downstream from Lump Gulch Creek, 4 mi northeast of Clancy, 7 mi southeast of Helena, and at river mile 24.4.
DRAINAGE AREA - 192 mi².
REVISIONS HISTORY - WSP 1806: 1946, minimum discharge. WSP 1309: 1925; 1927; 1931, maximum discharge (M); 1933; 1948 (M). WSP 1729: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1908 to September 1916, July 1921 to September 1933, October 1945 to October 1953, October 1954 to September 1969, October 1978 to September 2002, October 2005 to current year. Seasonal records, Water Years 2011 and 2012. Record for October 1969 to September 1980 was collected by the Montana Department of Natural Resources and Conservation. Monthly discharge only for some periods, published in Water Supply Paper (WSP) 1309.
GAGE - Water-stage recorder. Datum of gage is 4,067.1 ft, referenced to the National Geodetic Vertical Datum of 1929. Prior to July 12, 1910, nonrecording gage at site 1.2 mi upstream at different datum. July 12, 1910 to Sept. 30, 1916, and July 28, 1921 to Aug. 12, 1933, nonrecording gage at site 2.2 mi upstream at different datum.
