Marshy Hope Wildlife Area

Eratt House is a historic home located near Bridgeville, Sussex County, Delaware. It was built about 1750, and is a two-story, three-bay, single-pile brick structure with a gable roof. The house is in the hall-and-parlor plan. The house was converted for use as a garage. It is one of only about a dozen surviving 18th-century brick houses in Sussex County.It was added to the National Register of Historic Places in 1983.

Trinity Methodist Episcopal Church is a historic Methodist Episcopal church located near Bridgeville, Sussex County, Delaware. It was built in 1885, and is a two-story, frame church building in the Gothic Revival style. It has a gable roof and corner pilasters with lancet insets. Attached to the church is a Sunday School annex.It was added to the National Register of Historic Places in 1978.

Jones Branch is a 2.39 mi (3.85 km) long first-order tributary to Marshyhope Creek in Sussex County, Delaware.

Melson House, also known as the Brown Residence and Curtis Jacobs House, is a historic home located near Atlanta, Sussex County, Delaware. It was built in the 18th century, and is a two-story, three-bay, brick dwelling. It has a gable roof and two one-story wings, one brick and the other frame. It features a frame porch across most of the first-floor front and gable end chimneys.It was added to the National Register of Historic Places in 1978.

Scott's Store is a historic commercial building located near Bridgeville, Sussex County, Delaware. It was built about 1875, and is a two-story, rectangular, frame structure in a simplified Victorian Gothic style. It sits on a brick foundation, is sheathed in weatherboard, and a gable roof. The storefront has a pair of double doors and there is the large one-story, hipped porch roof extending across the face of the building. Also on the property are a contributing garage and outhouse, and a submerged round metal tank used to mix carbide gas. It is typical of the no longer numerous 19th-century country stores of southern Delaware.It was added to the National Register of Historic Places in 1983.

Scotts Corner is an unincorporated community in Sussex County, Delaware, United States. Scotts Corner is located at the junction of state routes 36 and 404, 4.5 miles (7.2 km) west-southwest of Greenwood.

Atlanta is an unincorporated community in Sussex County, Delaware, United States. Atlanta is located on Delaware Route 18 near the Maryland border. The Melson House was added to the National Register of Historic Places in 1978.

Jones Mill Branch is a 2.78 mi (4.47 km) long second-order tributary to Marshyhope Creek in Sussex County, Delaware.

Iron Mine Branch is a 3.82 mi (6.15 km) long second-order tributary to Marshyhope Creek in Sussex County, Delaware.

The Salisbury Embayment was an arm of the Atlantic Ocean which covered what is now Delaware, southern and eastern Maryland, the Virginia Peninsula and parts of southern New Jersey during Paleogene and Neogene times, from about 65 million to 5 million years ago. Sea level throughout most of this period stood several hundred feet higher than at present, and deposition of sediments draining off the continent possibly caused the underlying rocks to sink down, creating the embayment. The shore of the embayment lay inland at the present-day Fall Line in the region. Throughout the Paleogene and Neogene times, sediment accumulated on the floor of the Salisbury Embayment during pulses of high sea level, forming the Paleocene Aquia and Brightseat Formations, the Eocene Pamunkey Group, and the Miocene Chesapeake Group. There are no deposits from the Oligocene epoch due to a drop in sea level, however, a 2- to 3- mile diameter meteorite or asteroid is thought to have left a 50-mile diameter crater upon impact in the southern Chesapeake Bay.When sea levels fell as the Pleistocene ice ages took hold, the thousands of feet of sediment layers in the Salisbury Embayment were exposed as the Coastal Plain terrains of Delaware, Maryland and eastern Virginia.

Richards Historic District is a national historic district located in Greenwood, Sussex County, Delaware. The district includes 21 contributing buildings and 1 contributing site encompassing portions of three separate farms with three groupings of farm buildings. The farms are Poplar Level Farm, Locust Grove Farm, and Middle Space Farm. The three houses in the district were constructed by various members of the Richards family between 1758 and 1868. The earliest structure in the district is Poplar Level, the main section of which was built about 1758 by John Richards.It was added to the National Register of Historic Places in 1983.

Maston House, also known as Cannon's Savannah, is a historic home located near Seaford, Sussex County, Delaware. It was built in 1727 and enlarged in 1733. It is a 1+1⁄2-story, single pile, brick structure with a gable roof in the "Resurrection Manor" style. As such, it resembles Maryland rather than Delaware houses. It has shed-roof dormers. The interior has wide floor boards and a narrow enclosed staircase winding around the chimney. It is one of Sussex County's oldest brick structures. A small frame addition from the 1970s is attached to the northern end.It was added to the National Register of Historic Places in 1975.