Reliance, Delaware and Maryland

Wright Creek is a 5.25 mi (8.45 km) long tributary to the Nanticoke River that rises in western Sussex County, Delaware. The creek straddles the Delaware state line for most of its course and is tidal for about half of its length.

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.

Woodland is an unincorporated community in Sussex County, Delaware, United States. Woodland is located on the Nanticoke River, 3.8 miles (6.1 km) southwest of Seaford. Cannon's Ferry, which is listed on the National Register of Historic Places, is located in Woodland and is also known as the Woodland Ferry.

The Woodland Ferry, historically known as Cannon's Ferry, is a cable ferry located in western Sussex County, Delaware, United States, spanning the Nanticoke River at Woodland, Delaware, west of the city of Seaford. The ferry is operated year-round by the Delaware Department of Transportation. It is closed on national holidays of Christmas, Thanksgiving, and New Year's Day, and also as required by weather.

Nanticoke Wildlife Area is a state wildlife area located in Sussex County, Delaware, along the Nanticoke River and Broad Creek, near to Seaford, Delaware, and Bethel, Delaware. There is a monument commemorating Captain John Smith's journey into the Chesapeake Bay and its tributaries at Phillips Landing along Broad Creek, a tributary of the Nanticoke River in Delaware. It is made up of three large land tracts totaling 4,510 acres (1,825 ha), it is managed by Delaware Department of Natural Resources and Environmental Control (DNREC), Division of Fish and Wildlife. The area also holds one of the few Delmarva fox squirrel populations within Delaware, along with controlled populations in Prime Hook Wildlife Refuge and Assawoman Wildlife Area.

Chapel Branch is a 6.4 mi (10.3 km) long tributary to Lewes Creek in Sussex County, Delaware. Lewes Creek then flows into the Nanticoke River.

Broad Creek is a 8.00 mi (12.87 km) long 4th order tributary to the Nanticoke River in Sussex County, Delaware.

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.

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.

Nanticoke City was an unincorporated community in western Sussex County, Delaware, United States that existed from 1856 until 1910. The community was laid out by Rev. Thomas B. Bradford, consisting of 100 lots built around the newly opened rail depot of the Delaware Railroad just west of the then town limits of Seaford. Additional lots were added, bringing the community to 179 properties. On October 8, 1907, a storm of reported "near hurricane strength" struck the community, causing injuries and destroying homes. In 1910, the community was formally annexed into the municipal limits of Seaford and is that part of the city west of the railroad tracks, south of Poplar Street, east of Shipley Street, and extending southward to the Nanticoke River and Nanticoke Avenue.

Gov. William H. Ross House, also known as The Ross Mansion, is a historic home located near Seaford, Sussex County, Delaware. It was built in 1859, and is a two-story, brick mansion in three main connected blocks in an "H"-shape. It is in the Italianate style and features a three-story tower in the central space. The interior retains its original plaster mouldings, its Victorian trim, doors, and original inside shutters. It was the home of Delaware Governor William H. H. Ross (1814-1887), who built the home along the railroad he helped to establish.It was added to the National Register of Historic Places in 1977.The Seaford Historical Society owns the house and operates it as a pre-Civil War period historic house museum known as the Governor Ross Mansion & Plantation. From the Seaford Historical Society's website: "Purchased by the Seaford Historical Society in 1976, this rare and complete Victorian Italianate mansion, ca. 1850s, has been lovingly restored and fully furnished. ... The Gov. Ross Mansion was built in the 1850s by William Henry Harrison Ross for himself and his family. Ross served as the Democratic Governor of Delaware from 1851 to 1855. Extremely popular with the people, he was instrumental in bringing the railroad into Southern Delaware. Trains running daily to Philadelphia vitalized the economy as farmers switched crops from wheat and corn to higher priced tomatoes, strawberries, peaches and other perishables. Ross became a local hero, but he was also a slave owner and Southern sympathizer. When war broke out between the states, Delaware sided with the North. Ross supported the Confederacy, and was forced to England. Today, the Gov. Ross Mansion stands as a reminder of pre-Civil War life." The plantation has the only known slave quarters surviving and documented in Delaware.

Seaford Station Complex is a historic railway station complex and national historic district located at Seaford, Sussex County, Delaware. It includes two contributing buildings and two contributing structures and considered an outstanding example of a turn-of-the-20th century, unaltered, small-town railroad complex in Delaware. They are the Seaford Railroad Station, Seaford Freight Station, the Nanticoke River moveable railroad bridge, and mainline railroad tracks. The Seaford Railroad Station is brick rectangular building with a large bracketed overhang, built about 1905. The Seaford Freight Station was built about the same time, and consists of an open porch, covered by an arcaded extension of the roof, with an office and store room. The Nanticoke River moveable railroad bridge is an iron through-truss structure carrying a single track. It was built about 1890 by the Pencoyd Bridge and Construction Company of Pencoyd, Pennsylvania. The main line track north of the depot was double-tracked just before World War I.It was added to the National Register of Historic Places in 1978.