USGS Water-Year Summary 2024
01491000 CHOPTANK RIVER NEAR GREENSBORO, MD
LOCATION - Lat 38°59'49.9", long 75°47'08.9" referenced to North American Datum of 1983, Caroline County, MD, Hydrologic Unit 02060005, on right bank at highway bridge (removed), 0.1 mi upstream from Gravelly Branch, 2.0 mi northeast of Greensboro, and 60 mi upstream from mouth.
DRAINAGE AREA - 113 mi².
REVISIONS HISTORY - WSP 1622: 1948. WDR MD-DE-79-1: 1961(P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1948 to current year.
GAGE - Water-stage recorder, concrete control, and crest-stage gage. Datum of gage is 2.73 ft above North American Vertical Datum of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in 1935 is believed to have been higher than that of Aug. 4, 1967, from information by local residents.