{"name":"Old Chinatown alley network","city":"San Francisco, California","canonical_url":"https://gydeinfo.com/san-francisco/places/ross-alley/","markdown_url":"https://gydeinfo.com/san-francisco/places/ross-alley.md","updated_at":"2026-06-19T14:50:14.104243+00:00","facts":[{"claim":"The alley network is a defining hidden feature behind Chinatown's main streets.","citation":"http://www.sanfranciscochinatown.com","source_title":"Chinatown San Francisco - The largest chinatown outside of Asia","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T14:24:55.050451+00:00","fact_type":"history","as_of":"2024","confidence":0.79},{"claim":"The neighborhood containing the alley network is presented as the largest Chinatown outside Asia and the oldest in North America.","citation":"http://www.sanfranciscochinatown.com","source_title":"Chinatown San Francisco - The largest chinatown outside of Asia","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-19T14:24:55.050451+00:00","fact_type":"significance","as_of":"2024","confidence":0.88},{"claim":"The Chinatown street pattern and boundaries can be traced on an 1885 map in the ArcGIS StoryMap.","citation":"https://storymaps.arcgis.com/stories/30bf274554ee4c0f938589b5b8169666","source_title":"Rediscovering Chinatown San Francisco with GIS - 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