{"nrhp_refnum":"91000006","name":"Southwest No. 1 Boundary Marker of the Original District of Columbia","other_names":["SW1,Jurisdiction Stone","DHR File No. 00-22"],"category":"object","location":{"address":"1220 Wilkes St.","address_restricted":false,"city":"Alexandria (Independent City)","county":"Alexandria","state":"VA","lat":38.803350298000055,"lon":-77.05710952999993,"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 at the southwest corner of Wilkes and South Payne streets in Alexandria, Virginia, set within a wrought-iron fence. It is one of the original boundary stones of the District of Columbia, placed in 1791-1792.","why_significant":"It marked the first mile on the southwest side of the District of Columbia, one mile from the South Cornerstone at Jones Point. It is in the best condition of any of the stones on the Virginia side. Because it was moved from its original position, it was considered under Criteria Consideration B and judged exceptional as part of a rare group of surviving markers.","narrative":"Southwest No. 1 is a small sandstone marker beside the sidewalk at Wilkes and South Payne streets in Alexandria, Virginia. Cut from Aquia sandstone and placed in 1791-1792, it was the first mile marker on the southwest side of the original District of Columbia, one mile from the South Cornerstone at Jones Point. Around 1904 the stone was dug up and carried about 225 feet from its proper spot, and by 1906 it lay on the ground. It was later set upright but rotated, so the Jurisdiction side no longer faces the District. Its lettering is smaller and shallower than on other stones, suggesting a different carver. A wrought-iron fence and a bronze plaque placed in 1916 by the Daughters of the American Revolution protect it. The stone is in the best condition of any on the Virginia side. It was listed for its role in the early development of the Federal city, with its relocation treated as an exception.","period_of_significance":"1791-1916","architect_builder":"Unknown","architectural_style":null,"criteria":["A"],"status_note":"The stone is complete with little deterioration. The iron fence is in excellent condition, though the grounds inside the enclosure are unkempt. The Mount Vernon Chapter of the DAR is its steward.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:00.170017-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/2/6785/41678502/content/electronic-records/rg-079/NPS_VA/91000006.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41678502","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/alexandria/southwest-no-1-boundary-marker-of-the-original-district-of-columbia-91000006/"}