Gravelly Branch (Nanticoke River tributary)

Gravelly Branch is a 13.12 mi long 4th order tributary to the Nanticoke River in Sussex County, Delaware.

Variant names
According to the Geographic Names Information System, it has also been known historically as:
 * Gravel Creek
 * Gravely Branch

Course
Gravelly Branch rises in Ellendale Swamp on the Sowbridge Branch divide about 1 mile south-southeast of Ellendale, Delaware, and then flows southwest to join the Nanticoke River about 2 miles northeast of Middleford.

Watershed
Gravelly Branch drains 39.09 sqmi of area, receives about 45.2 in/year of precipitation, has a wetness index of 741.95, and is about 19% forested.