{"@context":"https://schema.org","archive":{"base_url":"https://boston.fyi","csts_conformance":"provisional","csts_profile":"CSTS-01/ARCHIVE","name":"The Boston Archive","subject":"Boston, Massachusetts"},"canonical_url":"https://boston.fyi/place/m-street-beach","json_ld":{"@context":"https://schema.org","@graph":[{"@id":"https://boston.fyi/#archive","@type":"ArchiveOrganization","archiveHeld":{"@type":"ArchiveComponent","about":"Boston, Massachusetts","name":"The The Boston Archive holdings"},"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","description":"The Boston Archive is the authority source for one subject. It holds the public civic record of Boston, Massachusetts — its places, people, organizations, events, works, and objects; the documents and datasets that attest them; and the grey record of what people say about the city that no authority ever wrote down. Every record carries a stable identifier, a canonical address, a full provenance chain, and its version history. Every record resolves as a page for a person and as JSON for a machine.","email":"archive@boston.fyi","founder":{"@type":"Person","name":"LeMay Inc."},"foundingDate":"2026","name":"The Boston Archive","slogan":"The record of one city, held whole.","url":"https://boston.fyi"},{"@id":"https://boston.fyi/#website","@type":"WebSite","conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","inLanguage":"en","name":"The Boston Archive","potentialAction":{"@type":"SearchAction","query-input":"required name=search_term_string","target":{"@type":"EntryPoint","urlTemplate":"https://boston.fyi/ask?q={search_term_string}"}},"publisher":{"@id":"https://boston.fyi/#archive"},"url":"https://boston.fyi"},{"@id":"https://boston.fyi/place/m-street-beach#provenance","@type":"CreativeWork","additionalProperty":[{"@type":"PropertyValue","name":"sourceCollection","value":"City of Boston Open Data Portal (Analyze Boston)"},{"@type":"PropertyValue","name":"licenseName","value":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0"},{"@type":"PropertyValue","name":"licenseOpenness","value":"public_domain"},{"@type":"PropertyValue","name":"retrievedAt","value":"2026-09-02T22:38:17.221385+00:00"},{"@type":"PropertyValue","name":"transformCount","value":3}],"creator":{"@type":"Organization","name":"City of Boston Open Data Portal (Analyze Boston)"},"creditText":"City of Boston","dateCreated":"2026-09-02T22:38:17.221385+00:00","isBasedOn":"https://data.boston.gov/dataset/open-space","license":"https://opendatacommons.org/licenses/pddl/1-0/","name":"Provenance of M Street Beach"},{"@id":"https://boston.fyi/place/m-street-beach","@type":"Place","additionalProperty":[{"@type":"PropertyValue","name":"recordType","value":"Place"},{"@type":"PropertyValue","description":"official = promulgated by an authority; vernacular = held by attestation alone. The two layers are never merged.","name":"boundaryLayer","value":"official"},{"@type":"PropertyValue","name":"placeType","value":"park"},{"@type":"PropertyValue","name":"boundaryAuthority","value":"City of Boston Parks and Recreation Department"},{"@type":"PropertyValue","name":"areaSquareMetres","value":17818.537282422418}],"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","containedInPlace":{"@type":"Place","name":"Boston"},"dateCreated":"2026-09-02T22:38:41.548236+00:00","dateModified":"2026-09-02T22:38:41.548236+00:00","description":"Protected open space in the City of Boston open-space inventory. At 230 M Street.","encoding":{"@type":"MediaObject","contentUrl":"https://boston.fyi/place/m-street-beach.json","encodingFormat":"application/json"},"geo":{"@type":"GeoCoordinates","latitude":42.33075436,"longitude":-71.030520239},"hasMap":{"@type":"Map","encodingFormat":"application/geo+json","geometry":{"coordinates":[[[[-71.028916394,42.33123135],[-71.029170366,42.33147385],[-71.028641363,42.331714943],[-71.028248687,42.331881778],[-71.027724856,42.332079223],[-71.027243237,42.332245599],[-71.026894175,42.33235553],[-71.02660414,42.332441664],[-71.026631376,42.33248274],[-71.026693997,42.332465172],[-71.027499356,42.332200286],[-71.027771518,42.332102552],[-71.028374805,42.331875183],[-71.028926515,42.331648409],[-71.029172335,42.331535349],[-71.029415781,42.331415165],[-71.02969904,42.331276418],[-71.029915927,42.33117044],[-71.030329318,42.330974334],[-71.030667964,42.330810873],[-71.030966788,42.330666875],[-71.031388525,42.33047341],[-71.031548724,42.33040276],[-71.03172824,42.330328676],[-71.031978838,42.330224542],[-71.032253336,42.330120505],[-71.032787947,42.329921372],[-71.033166033,42.329788314],[-71.033457301,42.329696856],[-71.033035659,42.329073218],[-71.03297791,42.329089008],[-71.032929634,42.329119963],[-71.032877685,42.329155403],[-71.032840226,42.329183791],[-71.032772688,42.32922718],[-71.03273283,42.329251957],[-71.03269785,42.329273242],[-71.032643616,42.329305972],[-71.032626793,42.329316617],[-71.032598993,42.32933514],[-71.032565206,42.329359131],[-71.032531427,42.329382131],[-71.032463741,42.329429032],[-71.032434848,42.32944764],[-71.032362456,42.32949101],[-71.032291277,42.329534385],[-71.032152618,42.329613137],[-71.031927142,42.329733399],[-71.031798179,42.329797065],[-71.031782596,42.329804114],[-71.031744003,42.329821783],[-71.031705403,42.329840352],[-71.031618719,42.329880062],[-71.031495669,42.329948163],[-71.031367806,42.330026958],[-71.031300259,42.330071247],[-71.031231506,42.330114632],[-71.031227847,42.330117228],[-71.031156666,42.330160602],[-71.031120472,42.330181881],[-71.031084279,42.330203071],[-71.031066236,42.330214611],[-71.031048079,42.33022525],[-71.031012,42.33024734],[-71.030975806,42.33026862],[-71.030904625,42.330311994],[-71.030841823,42.330354502],[-71.030779014,42.33039791],[-71.030765851,42.330405869],[-71.03073195,42.330428868],[-71.030696956,42.330451863],[-71.030629395,42.330497952],[-71.030570246,42.330538674],[-71.030512315,42.330578591],[-71.030402562,42.330652957],[-71.030346964,42.330689282],[-71.030290274,42.330725513],[-71.0302202,42.330783206],[-71.030181594,42.3308187],[-71.030163384,42.330836451],[-71.030144088,42.330853298],[-71.030112626,42.330874506],[-71.030082504,42.33089491],[-71.030059582,42.330909941],[-71.030037872,42.330924977],[-71.029942647,42.330970953],[-71.029773865,42.331053091],[-71.029653437,42.331110577],[-71.029646157,42.331110547],[-71.029639012,42.331108717],[-71.029635379,42.331107802],[-71.02963186,42.331107788],[-71.029628227,42.331106873],[-71.029624587,42.331106858],[-71.029618635,42.331107734],[-71.029611341,42.331109504],[-71.029605383,42.331111191],[-71.029564362,42.331128849],[-71.029534293,42.33114214],[-71.029504097,42.331156241],[-71.029484874,42.331163275],[-71.029465656,42.331169498],[-71.029456038,42.33117387],[-71.029453598,42.331175661],[-71.029449945,42.331177447],[-71.029446292,42.331179232],[-71.02944398,42.331180033],[-71.02944034,42.331180018],[-71.029437907,42.331180908],[-71.029434267,42.331180894],[-71.029431962,42.331180884],[-71.029428322,42.331180869],[-71.029419963,42.331179124],[-71.029411489,42.331176389],[-71.029403144,42.331172754],[-71.029394798,42.331169208],[-71.02938646,42.331164673],[-71.029368448,42.331155686],[-71.029357675,42.331152131],[-71.029346903,42.331148485],[-71.02934327,42.33114757],[-71.029339758,42.331146655],[-71.029334912,42.331145735],[-71.029331272,42.33114572],[-71.02932654,42.331145701],[-71.0293229,42.331145686],[-71.029314521,42.331146552],[-71.029306015,42.331148318],[-71.029293969,42.33115277],[-71.029282105,42.33114912],[-71.029265254,42.331147251],[-71.029213612,42.331140827],[-71.029195662,42.331139853],[-71.02917879,42.331140685],[-71.029160826,42.331141511],[-71.029143948,42.331143243],[-71.029127184,42.331145785],[-71.029111512,42.331148422],[-71.029095828,42.331152769],[-71.028916394,42.33123135]]]],"type":"MultiPolygon"},"name":"Boundary of M Street Beach"},"identifier":"urn:lemay:boston:entity:m-street-beach","inLanguage":"en","isPartOf":{"@id":"https://boston.fyi/#archive"},"license":"https://opendatacommons.org/licenses/pddl/1-0/","name":"M Street Beach","provenance":{"@id":"https://boston.fyi/place/m-street-beach#provenance"},"url":"https://boston.fyi/place/m-street-beach","version":1},{"@id":"https://boston.fyi/place/m-street-beach#breadcrumbs","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://boston.fyi","name":"The Boston Archive","position":1},{"@type":"ListItem","item":"https://boston.fyi/place","name":"Places","position":2},{"@type":"ListItem","item":"https://boston.fyi/place/m-street-beach","name":"M Street Beach","position":3}]}]},"json_url":"https://boston.fyi/place/m-street-beach.json","record":{"alternate_names":[],"canonical_name":"M Street Beach","canonical_path":"/place/m-street-beach","created_at":"2026-09-02T22:38:41.548236Z","description":"Protected open space in the City of Boston open-space inventory. At 230 M Street.","detail":{"area_sq_m":17818.537282422418,"authority":"City of Boston Parks and Recreation Department","boundary_layer":"official","centroid_geojson":{"coordinates":[-71.030520239,42.33075436],"type":"Point"},"detail_type":"Place","geometry_geojson":{"coordinates":[[[[-71.028916394,42.33123135],[-71.029170366,42.33147385],[-71.028641363,42.331714943],[-71.028248687,42.331881778],[-71.027724856,42.332079223],[-71.027243237,42.332245599],[-71.026894175,42.33235553],[-71.02660414,42.332441664],[-71.026631376,42.33248274],[-71.026693997,42.332465172],[-71.027499356,42.332200286],[-71.027771518,42.332102552],[-71.028374805,42.331875183],[-71.028926515,42.331648409],[-71.029172335,42.331535349],[-71.029415781,42.331415165],[-71.02969904,42.331276418],[-71.029915927,42.33117044],[-71.030329318,42.330974334],[-71.030667964,42.330810873],[-71.030966788,42.330666875],[-71.031388525,42.33047341],[-71.031548724,42.33040276],[-71.03172824,42.330328676],[-71.031978838,42.330224542],[-71.032253336,42.330120505],[-71.032787947,42.329921372],[-71.033166033,42.329788314],[-71.033457301,42.329696856],[-71.033035659,42.329073218],[-71.03297791,42.329089008],[-71.032929634,42.329119963],[-71.032877685,42.329155403],[-71.032840226,42.329183791],[-71.032772688,42.32922718],[-71.03273283,42.329251957],[-71.03269785,42.329273242],[-71.032643616,42.329305972],[-71.032626793,42.329316617],[-71.032598993,42.32933514],[-71.032565206,42.329359131],[-71.032531427,42.329382131],[-71.032463741,42.329429032],[-71.032434848,42.32944764],[-71.032362456,42.32949101],[-71.032291277,42.329534385],[-71.032152618,42.329613137],[-71.031927142,42.329733399],[-71.031798179,42.329797065],[-71.031782596,42.329804114],[-71.031744003,42.329821783],[-71.031705403,42.329840352],[-71.031618719,42.329880062],[-71.031495669,42.329948163],[-71.031367806,42.330026958],[-71.031300259,42.330071247],[-71.031231506,42.330114632],[-71.031227847,42.330117228],[-71.031156666,42.330160602],[-71.031120472,42.330181881],[-71.031084279,42.330203071],[-71.031066236,42.330214611],[-71.031048079,42.33022525],[-71.031012,42.33024734],[-71.030975806,42.33026862],[-71.030904625,42.330311994],[-71.030841823,42.330354502],[-71.030779014,42.33039791],[-71.030765851,42.330405869],[-71.03073195,42.330428868],[-71.030696956,42.330451863],[-71.030629395,42.330497952],[-71.030570246,42.330538674],[-71.030512315,42.330578591],[-71.030402562,42.330652957],[-71.030346964,42.330689282],[-71.030290274,42.330725513],[-71.0302202,42.330783206],[-71.030181594,42.3308187],[-71.030163384,42.330836451],[-71.030144088,42.330853298],[-71.030112626,42.330874506],[-71.030082504,42.33089491],[-71.030059582,42.330909941],[-71.030037872,42.330924977],[-71.029942647,42.330970953],[-71.029773865,42.331053091],[-71.029653437,42.331110577],[-71.029646157,42.331110547],[-71.029639012,42.331108717],[-71.029635379,42.331107802],[-71.02963186,42.331107788],[-71.029628227,42.331106873],[-71.029624587,42.331106858],[-71.029618635,42.331107734],[-71.029611341,42.331109504],[-71.029605383,42.331111191],[-71.029564362,42.331128849],[-71.029534293,42.33114214],[-71.029504097,42.331156241],[-71.029484874,42.331163275],[-71.029465656,42.331169498],[-71.029456038,42.33117387],[-71.029453598,42.331175661],[-71.029449945,42.331177447],[-71.029446292,42.331179232],[-71.02944398,42.331180033],[-71.02944034,42.331180018],[-71.029437907,42.331180908],[-71.029434267,42.331180894],[-71.029431962,42.331180884],[-71.029428322,42.331180869],[-71.029419963,42.331179124],[-71.029411489,42.331176389],[-71.029403144,42.331172754],[-71.029394798,42.331169208],[-71.02938646,42.331164673],[-71.029368448,42.331155686],[-71.029357675,42.331152131],[-71.029346903,42.331148485],[-71.02934327,42.33114757],[-71.029339758,42.331146655],[-71.029334912,42.331145735],[-71.029331272,42.33114572],[-71.02932654,42.331145701],[-71.0293229,42.331145686],[-71.029314521,42.331146552],[-71.029306015,42.331148318],[-71.029293969,42.33115277],[-71.029282105,42.33114912],[-71.029265254,42.331147251],[-71.029213612,42.331140827],[-71.029195662,42.331139853],[-71.02917879,42.331140685],[-71.029160826,42.331141511],[-71.029143948,42.331143243],[-71.029127184,42.331145785],[-71.029111512,42.331148422],[-71.029095828,42.331152769],[-71.028916394,42.33123135]]]],"type":"MultiPolygon"},"gnis_feature_id":null,"place_type":"park","within_place_id":"59094999-1a7e-42fc-a665-bf54c5d7e59a","within_place_name":"Boston"},"entity_type":"Place","external_ids":{"address":"230 M Street","boston_dataset":"open-space","latitude":42.33072259924291,"longitude":-71.03025834604288},"id":"7881c88c-9a9f-4079-9a5f-a2fdeb9b788a","kind":"entity","provenance":{"attribution":"City of Boston","license_id":"odc-pddl","license_name":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0","license_url":"https://opendatacommons.org/licenses/pddl/1-0/","openness":"public_domain","retrieved_at":"2026-09-02T22:38:17.221385Z","rights_statement":"Open Data Commons Public Domain Dedication and License (PDDL)","source_id":"city-of-boston-open-data","source_identifier":"42","source_name":"City of Boston Open Data Portal (Analyze Boston)","source_url":"https://data.boston.gov/dataset/open-space","transforms":[{"description":"retrieved the dataset's GeoJSON from the City of Boston open-data portal","input_sha256":null,"operation":"fetch","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:38:41.665069Z","seq":1,"tool":"archive-ingest 0.1.0"},{"description":"the source's own name field became the record title; no name was supplied by the archive","input_sha256":null,"operation":"normalize","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:38:41.705259Z","seq":2,"tool":"archive-ingest 0.1.0"},{"description":"the source is WGS 84 (EPSG:4326); geometry was set to that SRID without alteration of coordinates","input_sha256":null,"operation":"reproject","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:38:41.746926Z","seq":3,"tool":"archive-ingest 0.1.0"}]},"record_kind":"entity","slug":"m-street-beach","status":"published","summary":"Protected open space in the City of Boston open-space inventory. At 230 M Street.","title":"M Street Beach","updated_at":"2026-09-02T22:38:41.548236Z","urn":"urn:lemay:boston:entity:m-street-beach","version":1,"withdrawn_reason":null},"related":[{"record":{"canonical_path":"/place/boston","id":"59094999-1a7e-42fc-a665-bf54c5d7e59a","kind":"entity","title":"Boston","urn":"urn:lemay:boston:entity:boston"},"relation":"located_in"}],"urn":"urn:lemay:boston:entity:m-street-beach","version_history":[{"change_note":"accessioned from the City of Boston `open-space` file","changed_by":"archive-ingest 0.1.0","recorded_at":"2026-09-02T22:38:41.785275Z","version":1}]}