Cecil County, Maryland in the context of "Elk River (Maryland)"

The Christina River is a tributary of the Delaware River, approximately 35 miles (56 km) long, in northern Delaware. It also flows through small areas of southeastern Pennsylvania and northeastern Maryland. Near its mouth, the river flows past downtown Wilmington, Delaware, forming the city's harbor for traffic on the Delaware River. The Port of Wilmington, opened in 1923 at the river's mouth, handles international cargo and trade.

The river rises in southeastern Pennsylvania in Franklin Township in southern Chester County, and initially flows southeastwardly, passing through the northeastern extremity of Maryland in northeastern Cecil County, into New Castle County in Delaware, where it flows through western and southern areas of the city of Newark and then turns northeastwardly, passing the town of Newport and approaching Wilmington from the southwest. It receives White Clay Creek from the west near Newport, and Brandywine Creek in Wilmington, approximately 2 miles (3 km) upstream of its mouth.

Elkton is a town in and the county seat of Cecil County, Maryland, United States. The population was 15,776 at the 2020 census, up from 15,443 in 2010. It was formerly called Head of Elk because it sits at the head of navigation on the Elk River, one of the five tributary rivers that flow into the north of the Chesapeake Bay, east of the Susquehanna River and North East River, and north of the Bohemia River, and Sassafras River. The town constitutes part of the Philadelphia metropolitan area.

Elkton was once known as the Gretna Green of the East of the US because of its popularity as a place for eloping couples to marry.