Loudoun Gateway station

Horsepen Creek is one of the streams that flow into the Potomac River and then into the Chesapeake Bay. Horsepen Creek lies in Fairfax County, Virginia, a major county in Northern Virginia on the U.S. East Coast.

On January 29, 2011, Bethany Anne Decker (née Littlejohn; born May 13, 1989) left her husband's parents' home in Maryland and returned to her apartment in Ashburn, Virginia. Her boyfriend, Ronald Roldan, says he saw her there later that day. She has not been seen since. While Decker did not show up at her job or classes she took at nearby George Mason University, her absence was not noted for another three weeks, since messages to her friends purportedly from her continued to be posted on her Facebook account. After her family noted her absence otherwise, they found her car parked near her apartment. Apart from the Facebook posts, there had been no other evidence she had done anything since the day she was last seen. They reported her missing to Loudoun County Sheriff's Office. Decker was five months pregnant at the time of her disappearance. Extensive searches have found no trace of her or the child she might have given birth to. Roldan, who had a criminal record prior to the disappearance, was arrested in North Carolina in 2015 and charged with the attempted murder of another girlfriend after he shot her during an incident in 2014; he has not said anything about the Decker case. After she recovered, the victim claimed on the Dr. Phil show that he had made statements to her that might implicate him in Decker's disappearance. Roldan pled guilty to two lesser charges in 2016; after he served his sentence, he was expected to be deported to his native Bolivia. Instead, he was charged with Decker's abduction upon his release in 2020 and returned to Loudoun County. The incident has been the subject of a segment of the Investigation Discovery channel series Disappeared.

Loudoun School for Advanced Studies (LSAS) is a private school in Ashburn, Virginia, United States and is designed to inspire and challenge advanced students in grades 6-12.Students from LSAS worked to rehabilitate the historic Ashburn Colored School, which is located on the same property where LSAS has built its new campus.

The National Weather Service Baltimore/Washington is a local office of the National Weather Service responsible for monitoring weather conditions in 44 counties in eastern West Virginia, northern and central Virginia, the majority of the state of Maryland, as well as the city of Washington, D.C. Although labeled as the NWS Baltimore/Washington, its actual location is off Old Ox Road (Virginia State Route 606) in the Dulles section of Sterling, Virginia, adjacent to Washington Dulles International Airport. The NWS Baltimore/Washington currently employs about 25 people including meteorologists, support personnel, and management staff, working rotating shifts 24 hours a day, 7 days a week. Effective November 10, 2020, the National Weather Service Baltimore/Washington will be responsible for Cecil County, Maryland, rather than the National Weather Service Mount Holly/Philadelphia. As of the same date, the National Weather Service Baltimore/Washington will be responsible for Garrett County, Maryland, rather than the National Weather Service Pittsburgh.

Ashburn is a planned Washington Metro station in Loudoun County, Virginia, United States, on the Silver Line. Originally planned to begin operation in 2018, the station is now expected to open in July 2022. Ashburn will be the western terminus of the line; the current western terminus is Wiehle–Reston East station, which opened with phase one of the Silver Line in July 2014.In April 2015, the Washington Metropolitan Area Transit Authority approved the Loudoun County Board of Supervisors' name for the stop.Ashburn station is located at the median of the Dulles Greenway (SR 267) east of Old Ryan Road (SR 772). It will be the furthest station from the Washington city center, and the closest to West Virginia, being only 26.5 miles (42.6 km) by road from Keyes Gap.

Moorefield is a census-designated place (CDP) in Loudoun County, Virginia, United States. As of the 2010 census, the CDP was named Moorefield Station, and the population was 77. As of 2019, the estimated population was 1,976. Moorefield is a mixed-use development currently in progress, located at the Ashburn station currently under construction at the planned terminus of the Metrorail Silver Line.

Sterling, Virginia refers most specifically to a census-designated place (CDP) in Loudoun County, Virginia, United States. The population of the CDP as of the 2010 United States Census was 27,822. The CDP boundaries are confined to a relatively small area between Virginia State Route 28 on the west and Virginia State Route 7 on the northeast, excluding areas near SR 606 and the Dulles Town Center. A much wider region has a preferred mailing address of "Sterling, Virginia", per the United States Postal Service. Other localities included within this larger area include Arcola, Cascades, Countryside, Dulles, Dulles Town Center, Oak Grove, and Sugarland Run. The "Greater Sterling" region includes part of Washington Dulles International Airport and the former AOL corporate headquarters. Greater Sterling is also home to the National Weather Service Weather Forecast Office LWX (serving the Baltimore–Washington Metropolitan Area), as well as the Sterling Field Support Center, the National Weather Service test, research, and evaluation center for weather instruments. The following includes information covering both the CDP and the wider "Greater Sterling" region.

Warp Drive is a short street in Sterling, Virginia, United States. Originally named Steeplechase Drive, it is located in an industrial park off Atlantic Boulevard, and primarily serves as the address for Northrop Grumman Innovation Systems, an aerospace company. The street ends at a circle where an off-ramp from Virginia State Highway 28 joins from the opposite direction. In 2011, employees of Orbital Sciences—later acquired by Northrop—asked the Loudoun County Board of Supervisors to rename their street after the warp drive that allows ships in the Star Trek universe to travel faster than light. The supervisors voted unanimously to make it so (several of them using catchphrases associated with the franchise).

Ashburn is a census-designated place (CDP) in Loudoun County, Virginia, United States. As of the 2010 United States Census, its population was 43,511, up from 3,393 twenty years earlier. It is 30 miles (48 km) northwest of Washington, D.C., and part of the Washington metropolitan area. Ashburn is a major hub for Internet traffic, due to its many data centers. Andrew Blum characterized it as the "bullseye of America's Internet".

Ryan is an unincorporated community in Loudoun County, Virginia, United States. The community was once at the corner of Shellhorn, Ryan, and Waxpool roads. It is now a part of the Ashburn communities.

Dulles International Airport is a planned Washington Metro station at Washington Dulles International Airport in Loudoun County, Virginia, U.S., on the Silver Line. Originally planned to be operational by 2018, the station is now expected to open in July 2022. The station was originally planned to be underground, but was built as an above-ground station next to daily parking garage one.

American Airlines Flight 444 was a scheduled American Airlines flight from Chicago to Washington, D.C.'s National Airport. On November 15, 1979, the Boeing 727 serving the flight was attacked by "the Unabomber", Ted Kaczynski, who sent the bomb in the mail and set it to detonate at a certain altitude. The bomb partially denotated in the cargo hold and caused "a sucking explosion and a loss of pressure," which was then followed by large quantities of smoke filling the passenger cabin, forcing the pilots to make an emergency landing at Dulles International Airport. Twelve passengers had to be treated afterward for smoke inhalation.