{"nrhp_refnum":"12000813","name":"Ontario and San Antonio Heights Waiting Station","other_names":[],"category":"building","location":{"address":"1251 W. 24th St.","address_restricted":false,"city":"Upland","county":"San Bernardino County","state":"CA","lat":34.15203328000007,"lon":-117.67051395899995,"geom_source":"nps_gis"},"listed_date":"2012-09-25","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A one-story Romanesque Revival streetcar waiting station of river rock and concrete mortar, about 20x20 feet, in San Antonio Park in the San Antonio Heights neighborhood of Upland, California. It was built in 1907 for the Ontario and San Antonio Heights Railroad.","why_significant":"It is significant at the local level under Criterion A for its link to electric railroading and the suburban development of Upland. It served as the northern terminus of the streetcar line at the entrance to San Antonio Park. The nomination says it is the best surviving property tied to Upland's streetcar suburb era, since the powerhouse, tracks, poles and other stations are gone.","narrative":"Built in 1907 at the edge of San Antonio Park in Upland, California, this small stone waiting station sheltered passengers at the end of the Ontario and San Antonio Heights streetcar line. The one-story building measures about 20 by 20 feet and is made of irregular river rock set in concrete mortar, with battered corner buttresses, a stone parapet, and arched entrances. Its design echoes the nearby 1895 \"Stone Castle\" powerhouse, now demolished. William G. Kerckhoff's company extended the line to the park, and the station replaced an earlier wooden shelter. The line was sold to Pacific Electric in 1912, and streetcar service to San Antonio Heights ended in 1924 as automobiles became more common. No other stations, tracks, poles or the powerhouse survive from the line, so this building is the best remaining link to Upland's years as a streetcar suburb. A matching balustrade was added in 2009.","period_of_significance":"1907-1924","architect_builder":null,"architectural_style":"Late Victorian: Romanesque Revival","criteria":["A"],"status_note":"No longer a functioning streetcar depot; located in San Antonio Park, which is still used as a neighborhood park. A balustrade was added during a 2009 rehabilitation.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.528963-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/12000813.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12000813/ab216d88b8-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12000813/ab216d88b8-1600.webp","licence":"CC BY-SA 4.0","author":"Einbierbitte","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Ontario_San_Antonio_Heights_Waiting_Station_5.JPG\" rel=\"noopener\">Einbierbitte</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Ontario_San_Antonio_Heights_Waiting_Station_5.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860781","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133445494"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-bernardino-county/ontario-and-san-antonio-heights-waiting-station-12000813/"}