{"nrhp_refnum":"91000013","name":"Southwest No. 8 Boundary Marker of the Original District of Columbia","other_names":["SW8,Jurisdiction Stone","DHR File No. 00-22"],"category":"object","location":{"address":"Jct. of Wilson Blvd. and John Marshall Dr., behind apt. bldg.","address_restricted":false,"city":"Arlington","county":"Arlington County","state":"VA","lat":38.87072912600007,"lon":-77.14572546999995,"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, the Southwest No. 8 mile marker of the original District of Columbia, set within a small wrought iron fence behind an apartment complex near John Marshall Drive and Wilson Boulevard in Arlington, Virginia. It was placed in 1791-1792.","why_significant":"The stone marked the eighth mile on the southwest side of the District, measured from the South Cornerstone at Jones Point. It is part of a rare surviving group of boundary markers tied to the development of the federal city. Because it has been moved, it was listed with a relocation exception, justified by its role in that group.","narrative":"Behind an apartment complex at John Marshall Drive and Wilson Boulevard in Arlington, an Aquia sandstone block stands inside a small iron fence. It is the Southwest No. 8 boundary marker of the original District of Columbia, set in 1791-1792 to mark the eighth mile southwest of the South Cornerstone at Jones Point. The stone has had a troubled history. A 1894-97 survey found it missing, and a local resident said it had fallen from a caving bank on Throckmorton or Upton Hill and disappeared in the 1880s. By 1906 it had been found and reset, though rotated and not in its proper place. Today it is worn, gouged and broken, about 25 to 30 inches high, with a bronze plaque added by a Daughters of the American Revolution chapter in 1950. It was listed for its link to the planning of the federal city and as part of a rare surviving group of markers.","period_of_significance":"1791-1940","architect_builder":"Unknown","architectural_style":null,"criteria":["A"],"status_note":"Described as in poor condition, badly worn, gouged and broken, no longer in its proper position; the surrounding iron fence is bent and its concrete base is eroding, though the area is well maintained.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:59.660207-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/62/6785/41678562/content/electronic-records/rg-079/NPS_VA/91000013.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41678562","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/arlington-county/southwest-no-8-boundary-marker-of-the-original-district-of-columbia-91000013/"}