{"nrhp_refnum":"91000005","name":"Northwest No. 3 Boundary Marker of the Original District of Columbia","other_names":["NW3,Jurisdiction Stone","DHR File No. 00-22"],"category":"object","location":{"address":"4013 N. Tazewell St.","address_restricted":false,"city":"Arlington","county":"Fairfax (city and county)","state":"VA","lat":38.92475662600003,"lon":-77.13281919399998,"geom_source":"nps_gis"},"listed_date":"1991-02-01","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Politics/Government"],"significance_levels":["national"],"summary":{"what_it_is":"An Aquia sandstone boundary marker, set in 1791-1792 as the Northwest No. 3 mile marker of the original District of Columbia. It stands in a fenced area in the backyard of a private residence at 4013 North Tazewell Street, Arlington, Virginia.","why_significant":"The marker shows the third mile on the northwest side of the District, measured from the West Cornerstone. It was the third stone in Virginia placed at other than equal miles from the others and the last one set in Virginia. It is one of a rare group of surviving markers and is linked to the development of the federal city.","narrative":"Set in a private backyard on North Tazewell Street in Arlington, this Aquia sandstone marker is one of the original boundary stones of the District of Columbia, placed in 1791-1792. It marks the third mile on the northwest side, measured from the West Cornerstone. Its inscription reads \"3 Miles & 14p,\" meaning three miles and fourteen poles. It was the last stone set in Virginia, placed slightly beyond its mile distance because higher, firmer ground offered a more permanent site. The stone is said to have been broken off its base by a Union Army wagon during the Civil War. The broken part lay twenty to thirty feet from the buried base, and surveyors working on water power at Little Falls found the stump in 1894. A bronze plaque placed by the Arlington House Chapter of the Daughters of the American Revolution identifies the stone, and a wrought iron fence encloses it. It is significant as part of a rare surviving group of markers tied to the planning of the federal city.","period_of_significance":"1791-1940","architect_builder":"Unknown","architectural_style":null,"criteria":["A"],"status_note":"Stands within a wrought iron fence with a bronze plaque in a private backyard; the stone was found broken at its base and later recovered. Criteria Consideration B applies because the marker has been relocated.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:59.859964-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/15/6787/41678715/content/electronic-records/rg-079/NPS_VA/91000005.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41678715","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/fairfax/northwest-no-3-boundary-marker-of-the-original-district-of-columbia-91000005/"}