USGS Water-Year Summary 2020
03406500 ROCKCASTLE RIVER AT BILLOWS, KY
LOCATION - Lat 37°10'16", long 84°17'46" referenced to North American Datum of 1927, Laurel County, KY, Hydrologic Unit 05130102, on upstream side of bridge on State Highway 80 at Billows, 0.9 miles upstream from Pine Creek, 1.1 miles downstream from Hawk Creek, 13.0 miles west of London, and at mile 24.4.
DRAINAGE AREA - 604 mi².
- WSP 1436: Drainage area.
PERIOD OF RECORD - July 1936 to current year.
GAGE - Water-stage recorder. Datum of gage is 802.90 feet above NGVD of 1929. Prior to November 19, 1940, nonrecording gage at same site and datum.