Madeira School

Difficult Run is a 15.9-mile-long (25.6 km) tributary stream of the Potomac River in Northern Virginia in the United States. The area has had many historical uses dating back to the early 1800s. Today, the area is used recreationally by visitors interested in the watershed's variety of options including hiking, biking, fishing, boating, climbing, and bird watching. The wildlife at Difficult Run is vast as 163 different species can be seen depending on the season. There are 41 different soil types found on the trail and alongside the stream. The stream is part of the greater 57.7- square-mile Drainage basin, or watershed, located in the north-central portion of Fairfax County and drains directly to the Potomac River. Difficult Run flows through Fairfax County to Great Falls Park, on the Virginia side of the Potomac River. The portion of the run through the park has been characterized as "a miniature Mather Gorge and Great Falls." The stream picks up speed as it narrows into a steep gorge with waterfalls and quickly reaches the same level as the Potomac. At the mouth of Difficult Run, one can see a panoramic view of the Potomac River.

Bear Island is an island located in Potomac, Montgomery County, Maryland between the Potomac River and the Chesapeake and Ohio Canal near the Great Falls. It is managed by the National Park Service as part of the Chesapeake and Ohio Canal National Historical Park and is co-owned by The Nature Conservancy. One of its most popular attractions is the Billy Goat Trail. Pets are not allowed on Bear Island, nor is smoking.

Mather Gorge is a river gorge south and just downriver of Great Falls in the state of Maryland bordering Virginia. The Maryland land side of the gorge is Bear Island, part of the Chesapeake and Ohio Canal National Historical Park, and the Virginia side is part of Great Falls Park. Both parks are National Park Service sites. The gorge is named after Stephen Mather, the first director of the National Park Service. The gorge is cut by the Potomac River and is, for the most part, lined on both sides by cliffs. Towards the southern end of the gorge, the cliffs become tree-lined bluffs as the gorge widens out into the wider and larger Potomac Gorge. At Little Falls, the Potomac River crosses the Fall Line as it leaves the Appalachian Piedmont and enters the Atlantic Coastal Plain. Hiking is a common activity with many trails along and near the gorge. On the Maryland side, in the C&O Canal National Historical Park, Section A of the Billy Goat Trail follows the gorge—from below Great Falls to above the Anglers Inn river put-in. The River Trail in Great Falls Park follows the gorge on the Virginia side. It is also a popular rock climbing attraction as the cliff heights and terrain lend themselves well to top rope climbing. Generally, most of the rock climbing occurs on the vertical cliffs of the Virginia side of the gorge, below the Observation Decks and above the 90 degree river bend. Whitewater kayaking and canoeing is also very popular within the gorge. From Great Falls to the Difficult Run Rapids (Maryland Chute, Virginia Chute, and Center Chute), the gorge contains Class I to Class VI whitewater rapids.

Odricks Corner is an unincorporated community in Fairfax County, Virginia, United States. Odricks Corner lies north of the Dulles Toll Road (State Route 267) at the intersection of Spring Hill and Lewinsville Roads. Odricks Corner takes its name from Alfred Odrick, a former slave and carpenter who in 1872 purchased 30 acres and built a house on the southern side of Lewinsville Road. This was later intersected by Spring Hill Road, and the resulting location came to be known as Odrick's Corner. By 1879 a one-room schoolhouse, called Odrick's School, had been erected at the corner; tradition links Alfred Odrick to its creation. The school came to be used as well as a location for community meetings, and was the first place where services for Shiloh Baptist Church were held. The original frame building, which came to be the center of a thriving African-American community, was eventually replaced with a brick structure. This was later closed, and was sold in 1953; it has since been demolished.The history of the community has been noted by a historic marker near the Spring Hill Recreation Center, erected by the Fairfax County History Commission in 2002.

Towlston Grange is an 18th-century plantation in Great Falls in Fairfax County, Virginia, United States. The estate served as a residence for several prominent members of the Fairfax family. Towlston Grange is located at 1213 Towlston Road in Great Falls. There is a photograph of Bryan Fairfax's Towlston Grange in its unrestored state, taken by "The Rambler" of the Washington, D.C. Evening Star newspaper in 1918, that shows a 1+1⁄2-story clapboarded house built in the English tradition.[4]

The Patowmack Canal, sometimes called the Potomac Canal, is a series of five inoperative canals located in Maryland and Virginia, United States, that was designed to bypass rapids in the Potomac River upstream of the present Washington, D.C., area. The most well known of them is the Great Falls skirting canal, whose remains are managed by the National Park Service as it is within Great Falls Park Virginia, an integral part of the George Washington Memorial Parkway.The first section of the canal opened in 1795, and the canal ended operations in 1828.

The Billy Goat Trail is a 4.7-mile (7.6 km) hiking trail that follows a path between the C&O Canal and the Potomac River within the Chesapeake and Ohio Canal National Historical Park near the Great Falls in Montgomery County, Maryland. The trail has three sections: Section A, the northernmost, is 1.7 miles (2.7 km); Section B is 1.4 miles (2.3 km); and Section C, the southernmost, is 1.6 miles (2.6 km)

Carderock Recreation Area is a 100-acre park in Carderock, Maryland, part of the Chesapeake and Ohio Canal National Historical Park. The area is well known as a destination for its outdoor activities of rock climbing, hiking and biking. It is bounded by the Potomac River on the south and the Chesapeake and Ohio Canal on the north, and it is accessed from Clara Barton Parkway from the same exit as Carderock Division of the Naval Surface Warfare Center. The Recreation Area includes a picnic shelter, section C of the Billy Goat Trail, convenient access to the Chesapeake and Ohio Canal, and popular rock cliffs. The area has a long history of climbing and is notable for being the closest significant climbing area to Washington, D.C. As such, it is one of the most climbed cliffs in the eastern United States. There is no fee to enter the park.

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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.

Ash Grove is an 18th-century plantation house in Fairfax County, Virginia, United States. In 1790, Bryan Fairfax built Ash Grove on Leesburg Pike, two miles west of present-day Tysons Corner, for his son Thomas Fairfax. Ash Grove is said to have been named for an older Fairfax family house in England. In his later years, Thomas bought Vaucluse Plantation, near Alexandria, Virginia, and bestowed Ash Grove upon his second son, Henry. He married Caroline Herbert of Maryland, and they had several children, and operated a boarding school for young ladies.Captain Henry Fairfax died during the Mexican–American War, at Saltillo, Mexico, on August 14, 1847. The property was purchased by James Sherman on June 20, 1851. Descendants on occasion relate some interesting family lore of American Civil War events when the neighborhood was a "no man's land."James Sherman died in spring 1865, and left the property to his son, Franklin Sherman (February 11, 1843 - April 9, 1915), Lieutenant in the 10th Michigan Cavalry. He returned after the Civil War to farm, was Sheriff, member of the Board of Supervisors, and School Board. (A Fairfax County Elementary School is named for him.) The property passed to Wells Alvord Sherman, and then Wilson C Sherman.The house was purchased from the Sherman family in 1997, and dedicated as a Fairfax County, Virginia, park.

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.