Mount Aventine

Chapman State Park is a public recreation and historic preservation area bordering the Potomac River in Charles County, Maryland. The state park preserves the mansion and grounds of Mount Aventine, the historic home of the Chapman family, who had significant ties to many of the Founding Fathers. The park's diverse, heavily wooded biosphere is home to many rare and disjunct plant and animal species. Several of the park's trees have been nominated for state and national big tree champion status. Recreational features include fishing, hunting, and several miles of hiking trails.

Potomac Heights is a census-designated place (CDP) in Charles County, Maryland, United States. The population was 1,117 at the 2010 census. It has a volunteer fire department and numerous older rambler homes built for workers at the nearby U.S. Navy munitions plant in Indian Head (now known as the Indian Head Naval Surface Warfare Center).

Pomonkey Creek is a 1.8-mile-long (2.9 km) tidal tributary of the Potomac River, near Bryans Road, Maryland. It is named for the Pamunkey tribe of Native Americans that lived in the area.

Mason Springs is an unincorporated community in Charles County, Maryland, United States. Mason Springs is located at the junction of Maryland routes 224 and 225, 1.8 miles (2.9 km) southeast of Potomac Heights. The community had a post office from 1890 to 1924.Araby, a house on the National Register of Historic Places, is located in Mason Springs.

Bryans Road is a census-designated place (CDP) in Charles County, Maryland, United States. Per the 2020 census, the population was 8,650.Bryans Road was named after Oliver Norris Bryan, a 19th-century farmer and scientist who owned and operated Locust Grove Farm near Marshall Hall. The area consisted mostly of tobacco farms until the establishment of the Naval Proving Grounds at Indian Head in 1890. Some commercial establishments came about by the early 1920s, when the name "Bryans Road" first appeared on maps. The construction of Maryland Route 210 (Indian Head Highway) during World War II brought new traffic. By the early 1960s, Bryans Road became an established bedroom community for both Indian Head and Washington, D.C.At the main intersection of Bryans Road, a shopping center includes a supermarket, various gas stations, and assorted retail stores that serves the community. Local residents commute to work at the Indian Head Naval Surface Warfare Center, while others commute to employment centers throughout the greater Washington, D.C. metropolitan area. In 1998, plans for a massive housing development project at Chapman's Landing were thwarted by the Maryland state government, which bought the property to preserve green space under its smart growth policy.Marshall Hall was listed on the National Register of Historic Places in 1976, and Mount Aventine was listed in the Register in 1996.

Araby is a historic house located near Mason Springs, Charles County, Maryland. An example of Federal architecture, it was built in the mid-1700s and underwent extensive renovations a hundred years later. Much of the house remains unaltered from that time.Merchant William Eilbeck built the plantation house, where he lived with his wife Sarah. He was one of the wealthiest men in Charles County, and held the rank of colonel in the local militia, and by 1745 was one of the gentleman justices of the local court. Eilbeck also had another plantation nearby, but only one child, a daughter Anne. In 1750, planter George Mason married Anne. The young couple lived with the Eilbecks while constructing Gunston Hall on his Virginia estates, and continued to visit Araby from time to time. Another of Anne's former suitors, George Washington, who owned a nearby property, was a frequent visitor. Sarah Eilbeck survived her husband, so Araby did not pass to their third grandson William Mason (1757-1820) until her death in 1780, when he was 23 and an officer in the Fairfax militia.It was listed on the National Register of Historic Places in 1974.

Henry E. Lackey High School is a high school in Charles County, Maryland, United States. It is run by Charles County Public Schools.

Pomonkey Junior-Senior High School was an all-black high school located in Indian Head, Maryland. From 1966 to 1969, it began to be integrated with the all white schools, Henry E. Lackey High School and La Plata High School. The old Pomonkey High School building was then re-opened as a public middle school in 1970, it was rededicated in 1970 as Matthew Henson Middle School.

Elizabeth Hartwell Mason Neck National Wildlife Refuge is a National Wildlife Refuge of the United States located in Virginia. It is part of the Potomac River National Wildlife Refuge Complex. It is on Mason Neck, a peninsula in the Potomac River that forms part of the shoreline of Belmont Bay. The refuge is adjacent to Mason Neck State Park. Established in 1969 and managed by the United States Fish and Wildlife Service, it was the first federal refuge created specifically for the protection of the bald eagle. It is 2,277 acres (9.21 km2) in size, with 4.4 miles (7.1 km) of shoreline. It is covered with oak and hickory forest and it includes the largest freshwater marsh in northern Virginia. Since its founding, the refuge has been renamed for Elizabeth S. Hartwell, a local activist who fought to keep Mason Neck free of development.

Indian Head is a town in Charles County, Maryland, United States. The population was 3,894 at the 2020 U.S. Census. It has been the site of a naval base specializing in gun and rocket propellants since 1890. Production of nitrocellulose and smokeless powder began at the Indian Head Powder Factory in 1900. The name of the base has varied over the years from Indian Head Proving Ground, to Naval Powder Factory, to Naval Propellant Plant, to Naval Ordnance Station, to the present Naval Support Facility Indian Head. The facility's main tenant activity is the Indian Head Naval Surface Warfare Center (NSWC/IH). Advanced research in energetic systems takes place at NSWC/IH. NSWC/IH absorbed the function of the closed Naval Ordnance Laboratory, formerly in White Oak. The base currently employs 3,700 people.

Pomonkey is an unincorporated community located in Charles County, Maryland, United States at the crossing of Livingston and Pomfret Roads, one mile (1.6 km) from Bryans Road.

Maryland Airport (FAA LID: 2W5) is a privately owned, public use airport located four miles (6 km) east of the central business district of Indian Head, in Charles County, Maryland, United States.