{"nrhp_refnum":"78000436","name":"Charles River Basin Historic District","other_names":[],"category":"district","location":{"address":"Both banks of Charles River from Eliot Bridge to Charles River Dam","address_restricted":false,"city":"Cambridge","county":"Middlesex County","state":"MA","lat":42.363357500000035,"lon":-71.07641411585266,"geom_source":"nps_gis"},"listed_date":"1978-12-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Landscape Architecture","Conservation","Transportation","Social History"],"significance_levels":["state"],"summary":null,"photo":{"url_800":"https://nationalhistoricalregister.com/media/78000436/fa5869b5dc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/78000436/fa5869b5dc-1600.webp","licence":"CC BY-SA 3.0","author":"Original uploader was Daderot at en.wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Charles_River_Esplanade,_Boston,_Massachusetts.JPG\" rel=\"noopener\">Original uploader was Daderot at en.wikipedia</a>, <a href=\"http://creativecommons.org/licenses/by-sa/3.0/\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Charles_River_Esplanade,_Boston,_Massachusetts.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":"https://en.wikipedia.org/wiki/Charles_River_Reservation","wikidata":"https://www.wikidata.org/wiki/Q1065919"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/charles-river-basin-historic-district-78000436/"}