Watts Branch (Potomac River tributary)

Travilah is a United States census-designated place and an unincorporated area in Montgomery County, Maryland. It is 17.28 square miles (44.8 km2) located along the north side of the Potomac River, and surrounded by the communities of Potomac, North Potomac, and Darnestown—all census-designated places. It had a population of 11,985 as of the 2020 census.Within the Travilah census-designated place at the intersection of what are now Travilah Road and Glen Road, the small rural community of Travilah existed in the late 1800s and early 1900s. The community had its own post office, general store, school, town hall, church, and a few homes. The crossroads was popular with area farmers because it was close to the Chesapeake and Ohio Canal (C&O Canal) and at least two mills. The name Travilah comes from Travilah Clagett, who was the community's first postmaster in 1883. In 2000, the United States Census Bureau began recognizing the area around the original Travilah crossroads community as a census designated place. Much of this tranquil community is simply large homes on large tracts of land with numerous parks and nature preserves mixed in. The community is within driving-distance of Washington, D.C., and the I-270 Technology Corridor. Travilah has a median household income of about $235,000.

Glenstone is a private contemporary art museum in Potomac, Maryland, founded in 2006 by American billionaire Mitchell Rales and his wife, Emily Wei Rales. The museum's exhibitions are drawn from a collection of about 1,300 works from post-World War II artists around the world. It is the largest private contemporary art museum in the United States, holding more than $4.6 billion in net assets, and is noted for its setting in a broad natural landscape. Glenstone's original building was designed by Charles Gwathmey, with it being expanded several times on its 230-acre (93 ha) campus. Its most significant expansion was finished in the late 2010s, with outdoor sculpture installations, landscaping, a new complex designed by Thomas Phifer, and an environmental center being added. Glenstone has been compared to other private museums, such as the Frick Collection and The Phillips Collection. The museum is free to the public, with it seeing over 100,000 visitors in 2022.

The Travilah Oak is a large White Oak located in the Potomac Oak Shopping Center. The shopping center is located at the corner of Travilah Road and Glen Road in Travilah, Maryland. The Travilah Oak is believed to be over 330 years old. According to January 2021 measurements by the Maryland Big Tree Program, the Travilah Oak has a circumference of 19' 1", a height of 78', and a crown that stretches 110' in all directions.

The Edward Beale House is a historic home located at Potomac, Montgomery County, Maryland. It is a Colonial Revival residence built in 1938, and designed to look like a Pennsylvania farmhouse that has evolved over centuries. The 2+1⁄2-story house has a modified telescope form composed of stone and frame sections covered with side-gable slate shingle roofs. It was designed and built by Delaware architects Pope and Kruse.It was listed on the National Register of Historic Places in 1996.

Shady Oak is an unincorporated community in northern Fairfax County, Virginia, United States. Shady Oak is primarily a residential community on the Potomac River.

John Gunnell House, also known as the George Coleman House, is a historic home near Great Falls, Fairfax County, Virginia. It was built in 1852, and is a two-story, five bay, "T"-shaped frame dwelling in a vernacular Greek Revival style. It has an English basement, attic, and intersecting gable roofs with brick chimneys at each of the three gable ends. Also on the property is a contributing outbuilding, now used as a tool shed.It was listed on the National Register of Historic Places in 2006.

Great Falls Park is a small National Park Service (NPS) site in Virginia, United States. Situated on 800 acres (3.2 km2) along the banks of the Potomac River in northern Fairfax County, the park is a disconnected but integral part of the George Washington Memorial Parkway. The Great Falls of the Potomac River are near the northern boundary of the park, as are the remains of the Patowmack Canal, the first canal in the United States that used locks to raise and lower boats.

Matildaville is a ghost town located along the Patowmack Canal near present day Great Falls, Virginia, United States. It was named for the wife of Light Horse Harry Lee, on 40 acres of land owned at the time by Bryan Fairfax, 8th Lord Fairfax of Cameron, and served as headquarters for the Patowmack Company from 1785 until 1799. Now, all that remains of the town are a series of ruins on the grounds of Great Falls Park.

Olmsted Island is a small island in the middle of the Potomac River in the U.S. state of Maryland, near Great Falls which is a part of C & O Canal National Historical Park, located across the river from Great Falls Park. It is a part of Potomac, Maryland. Named for Frederick Law Olmsted, Jr., the landscape architect and preservationist whose famous father designed New York's Central Park, the small island is a bedrock terrace forest that supports rare, threatened and endangered plant species.The island is very rocky and has steep cliffs that face the river, where it has been eroded over time. It also has trees and vegetation. One might also spy a heron, small lizard or wild goose here. The total area of the island (estimating from calibrated satellite footage) is no more than 0.2 square kilometers. A fenced-in wooden tourist walkway winds along the southern part of the island. For the purpose of protecting the island's natural wildlife, visitors are not allowed to leave the tourist walkway. The tourist walkway eventually ends in a scenic overlook platform (see images 1 and 2) that has a beautiful view of the Great Falls of the Potomac River. "Hurricane Agnes washed away all the woody shrubs and trees in 1972," says R. Harrison Wiegand, a regional ecologist for the Wildlife and Heritage Service of the Maryland Department of Natural Resources. "The next big flood will wash them away again. The floods constantly change things. You may see a rare species in one area, then the floods will come through and wash it out. Some other plants will grow there instead. This is one of the most biologically diverse habitats within the whole national park system."The trail leading to Olmsted Island is handicapped accessible and has wheelchair ramps, but dogs are not permitted.

Great Falls is a series of rapids and waterfalls on the Potomac River, 14 miles (23 km) upstream from Washington, D.C., on the border of Montgomery County, Maryland and Fairfax County, Virginia. Great Falls Park, managed as part of George Washington Memorial Parkway, is on the southern banks in Virginia, and Chesapeake and Ohio Canal National Historical Park parkland is along the northern banks of the river in Maryland. Both are operated by the National Park Service. The Potomac and the falls themselves are legally entirely within Maryland, with the state and county boundaries following the south bank of the river. Scenic views are offered on both the Maryland side and the Virginia side. The Billy Goat Trail on Bear Island, accessible from Maryland, offers scenic views of the Great Falls, as do vantage points on Olmsted Island (also accessible from Maryland). There are overlook points on the Virginia side. The Great Falls area is popular for outdoor activities such as kayaking, whitewater rafting, rock climbing, and hiking. Great Falls and Little Falls (about 5 miles downstream) are named in contradistinction to one another.

The Glen Store and Post Office is a late 19th-century home located in Potomac, Maryland.

Muddy Branch is a tributary stream of the Potomac River in Montgomery County, Maryland, United States, located about 14 miles (23 km) northwest of Washington, D.C.