Elklick Woodlands Natural Area Preserve

Bull Run is a census designated place in Fairfax County, Virginia, United States. It was first listed as a CDP in the 2020 census with a population of 6,972.

Schneider Crossroads is an unincorporated community in Fairfax County, in the U.S. state of Virginia. State Route 620 and State Route 609 cross here and it is located 5.3 miles northwest by road from Centreville. It contains little more than a florists' and a site called Cox Farms. Pleasant Valley Golf Club lies to the northeast, with the two other quadrants also incorporated into yet undeveloped Fairfax County Park Authority parks. As the crossroads is a major traffic bottleneck, with traffic flow formally managed by 4-way stop signs, Loudoun County, just west of the crossroads, offered over a million of the county's funds in 2012 to pay for the intersection upgrade as their residents were inconvenienced the most by the traffic problem, although the intersection is completely in Fairfax County. The Virginia Department of Transportation determined that the optimal solution was a roundabout which was built from 2015 to 2016. Although traffic is much improved, the poor nature of the two-lane Braddock Road to the east of the traffic circle is now the main impediment of east-bound morning traffic.

Korean Central Presbyterian Church (KCPC) is an Evangelical Christian megachurch located in Centreville, Virginia, situated in the Washington D.C. in the US.Korean Central Presbyterian Church is a member congregation of the Presbyterian Church in America.

Stone Bridge crosses Bull Run at the eastern entrance of the Manassas National Battlefield Park in Prince William County, Virginia. The original bridge, built in 1825, was destroyed when Confederate forces evacuated Northern Virginia in March, 1862. In 1884, a new bridge, apparently similar to the original design, was built on the site of the old bridge. Modern day U.S. Route 29 crosses Bull Run on a bridge built in the late 1960s downstream of this one.

Conklin is a small unincorporated village south of Washington Dulles International Airport in Loudoun County, Virginia, United States. It is located along SR 620 (Braddock Road) adjacent to the community of South Riding. Prosperity Baptist Church and Settle-Dean Cabin are the centerpieces of Conklin.

Westfield High School is a public high school in unincorporated Fairfax County, Virginia, United States, west of the Chantilly CDP.It is a part of Fairfax County Public Schools (FCPS), serving students from the communities including Chantilly and Centreville as well as areas with Herndon addresses in grades 9–12. Opened in 2000, it is the head of the Westfield High School Pyramid in Cluster VIII. Westfield's main building has the same layout as South County High School (Fairfax County, Virginia). At 3,260 students, it is one of the largest four-year high schools in the Commonwealth of Virginia.The school was listed as the 46th best high school in the United States by Newsweek magazine in 2002 and 27th in the Washington, D.C., metropolitan area by The Washington Post in 2006 due to a high percentage of students enrolled in Westfield's Advanced Placement (AP) classes. Westfield shares a business partnership with Northrop Grumman's business IT group that entails sharing of buildings, as well as financial donations and gifts of supplies. It also shares an education partnership with Centreville Presbyterian Church to improve student achievement.

Sudley Springs is an unincorporated community in Prince William County, in the U.S. state of Virginia.

Robinson House sits at the bottom of Henry Hill, near Bull Run in Virginia. The house was named for the family of James "Gentleman Jim" Robinson, a free African American, who built the house. The Robinson family, descendants of Gentleman Jim, owned and occupied the house and a large portion of the land around it from the 1840s until 1936. The National Park Service acquired this parcel as part of their effort to commemorate two major battles of the American Civil War, the First and Second battles of Bull Run (also known as First and Second Manassas) which occurred about one year apart. Both battles were Confederate victories. However, Robinson House managed to survive virtually unscathed.

The Stone House, Manassas National Battlefield Park, is a two-story stone structure in Prince William County, Virginia. It was built as a stop on the Fauquier and Alexandria Turnpike in 1848. During the American Civil War, The Stone House served as a hospital during the First and Second Battles of Manassas. Today the Stone House is owned by the National Park Service as a contributing property to the Manassas National Battlefield Park, which is listed on the National Register of Historic Places.

The First Battle of Bull Run, called the Battle of First Manassas by Confederate forces, was the first major battle of the American Civil War. The battle was fought on July 21, 1861, in Prince William County, Virginia, just north of the city of Manassas and about thirty miles west-southwest of Washington, D.C. The Union Army was slow in positioning themselves, allowing Confederate reinforcements time to arrive by rail. Each side had about 18,000 poorly trained and poorly led troops. The battle was a Confederate victory and was followed by a disorganized post-battle retreat of the Union forces. Just months after the start of the war at Fort Sumter, the northern public clamored for a march against the Confederate capital of Richmond, Virginia, which was expected to bring an early end to the Confederacy. Yielding to political pressure, Brigadier General Irvin McDowell led his unseasoned Union Army across Bull Run against the equally inexperienced Confederate Army of Brigadier General P. G. T. Beauregard, whose forces were camped near Manassas Junction. McDowell's ambitious plan for a surprise flank attack on the Confederate left was poorly executed although the Confederates, who had been planning to attack the Union left flank, found themselves at an initial disadvantage. Confederate reinforcements under Brigadier General Joseph E. Johnston arrived from the Shenandoah Valley by railroad, and the course of the battle quickly changed. A brigade of Virginians under a relatively unknown brigadier general from the Virginia Military Institute, Thomas J. Jackson, stood its ground, which resulted in Jackson receiving his famous nickname, "Stonewall". The Confederates launched a strong counterattack, and as the Union troops began withdrawing under fire, many panicked and the retreat turned into a rout. McDowell's men frantically ran without order in the direction of Washington, D.C. Both armies were sobered by the fierce fighting and the many casualties and realized that the war was going to be much longer and bloodier than either had anticipated. The First Battle of Bull Run highlighted many of the problems and deficiencies that were typical of the first year of the war. Units were committed piecemeal, attacks were frontal, infantry failed to protect exposed artillery, tactical intelligence was minimal, and neither commander was able to employ his whole force effectively. McDowell, with 35,000 men, could commit only about 18,000, and the combined Confederate forces, with about 32,000 men, also committed 18,000.

Henry House Hill is a location near Bull Run in Virginia. Named for the house of the Henry family that sits atop it, the hill begins near the road of Centreville, Virginia, after Gainesville, Virginia, to today's U.S. Route 29, the Warrenton Turnpike. It is a slow, constant rise toward the south over a length of approximately 730 meters. This hill was an important site of the battles of First and Second Bull Run (also known as First and Second Manassas) in the American Civil War. The battle raged on the north side of the hill in predominantly open grass country; the south side was relatively closely covered with trees. The hill received its name from Dr. Isaac Henry, who lived with his family in a house on the plateau of the hill. On July 21, 1861, the house was inhabited by his widow, Judith Carter Henry, and their two sons. The 85-year-old woman was bed-ridden and unable to leave the house. Mrs. Henry was mortally wounded when a projectile of the Union artillery crashed through the bedroom wall and tore off one of her feet and inflicted multiple injuries, from which she died later that day. During the First Battle of Bull Run, Brig. Gen. Thomas J. Jackson and his Confederate soldiers had taken up positions on Henry House Hill. During the battle General Jackson was pushed off of the hill many times by the 14th Brooklyn. The General gave the 14th its famous nickname, "Red Legged Devils" because of their striking red pantaloon trousers. Brig. Gen. Irvin McDowell, commander of the Federal forces, had been ordered by Abraham Lincoln to engage a large Rebel force that was led by Brig. Gen. P.G.T. Beauregard in an effort to end the Civil War with one decisive battle. Union soldiers had been ordered up the hill. Under huge amounts of enemy fire the Southerners held back the Federal soldiers with heavy losses. Brig. Gen. Barnard Bee shouted to his men, "There is Jackson standing like a stone wall. Let us determine to die here, and we will conquer. Follow me." That gave Thomas Jackson the famous nickname Stonewall. In the retreat from the hill, a Union wagon tipped over on Cub Run Bridge, blocking the Federal retreat, causing many of the undisciplined volunteers to drop their rifles and run. Henry House Hill is preserved as part of the Manassas National Battlefield Park.

The NAVWAR Space Field Activity (NSFA) is one of three Echelon III activities under the Naval Information Warfare Systems Command (NAVWARSYSCOM) of the United States Navy, co-located with the National Reconnaissance Office (NRO) in Chantilly, Virginia. The activity was established to coordinate naval space and warfare systems activities within the National Reconnaissance Office. NSFA personnel provide naval warfare and acquisition expertise to national reconnaissance programs, coordinate naval space research, development, and acquisition activities with those same national reconnaissance programs, and provide and coordinate training and tools to enable the fleet to use national space capabilities.