USGS Water-Year Summary 2018
15015595 UNUK RIVER BELOW BLUE RIVER NEAR WRANGELL, AK
LOCATION - Lat 56°14'26", long 130°52'49" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 NE 1/4 sec.16, T.65 S., R.94 E., Ketchikan Gateway Borough, AK, Hydrologic Unit 19010105, (Bradfield Canal A-3 quad), in Misty Fiords National Monument, on right bank 17 mi upstream from the Post (Bishop Ranch), near the mouth of Burroughs Bay and approximately 60 mi southeast of Wrangell.
DRAINAGE AREA - 745 mi².
PERIOD OF RECORD - April 2003 to September 2007 (discontinued, no winter record). Gage restarted November 1, 2017
GAGE - Water-stage recorder. Elevation of gage is 130 ft above sea level, from topographic map.
PERIOD OF RECORD - Water years 2003 to 2007 (discontinued). Gage restarted November 1, 2017.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: April 2003 to September 2007 (discontinued). Gage restarted November 1, 2017.
INSTRUMENTATION - Digital water-temperature recorder with 15-minute recording interval.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 11.0°C, July 9, 23-24, 2004; minimum, 0.0°C, many days during most winter periods.