park · official boundary
M Street Beach
Protected open space in the City of Boston open-space inventory. At 230 M Street.
Place
official layer
An official boundary, promulgated by an authority with the power to draw it. It is not amended by anything on the vernacular layer.
- Filed by this archive as
- park
- Authority
- City of Boston Parks and Recreation Department
- Within
- Boston
- Area
- 1.78 hectares
- Boundary
- held as GeoJSON at
/asset/cae77b2985c7ccdb3e6ff87369c7b364/m-street-beach.geojson— 4615 bytes, exactly as accessioned
Map
image/svg+xml at /asset/827071acc68e05fc9b61f42559ed2f19/m-street-beach.svg — 1974 bytes, SHA-256 827071acc68e05fc… · Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0The exact coordinates are held separately as
/asset/cae77b2985c7ccdb3e6ff87369c7b364/m-street-beach.geojson (application/geo+json, 4615 bytes, SHA-256 cae77b2985c7ccdb…). The map is simplified for drawing; the boundary is not.Questions this record answers
Each answer is composed only from fields this record carries, and names the attestation for what it says. A question the record cannot answer from its own attested content is not asked here. Where a boundary is described as official it was promulgated by an authority with the power to draw it and is not amended by anything on the vernacular layer; where it is described as vernacular it is held by attestation alone and amends no official boundary.
Where is M Street Beach, and what kind of boundary does the archive hold?
M Street Beach is recorded as a park, within Boston. The archive holds its boundary on the official layer: promulgated by an authority with the power to draw it.
Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.
Who drew the boundary of M Street Beach?
City of Boston Parks and Recreation Department promulgated it. A boundary with no promulgating authority is an assertion rather than a fact, and this archive files those separately, as claims.
Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.
How large is M Street Beach?
1.78 hectares, computed from the boundary the archive holds and not quoted from elsewhere.
Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.
What does the archive's map of M Street Beach show?
A static map of the boundary, rendered by the archive on a server and never in a reader's browser, served as image/svg+xml at /asset/827071acc68e05fc9b61f42559ed2f19/m-street-beach.svg. The exact coordinates it was drawn from are served separately as application/geo+json at /asset/cae77b2985c7ccdb3e6ff87369c7b364/m-street-beach.geojson.
Attested by: Rendered by archive-ingest 0.1.0 from the boundary this archive holds; digest 827071acc68e05fc9b61f42559ed2f1963f469a1f7868446878129c9a537f30e.
What does the archive hold for M Street Beach, and under what license?
The Boston Archive holds this record of M Street Beach from City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public domain). 4 recorded transforms stand between the retrieved bytes and this record. Attribution is due to City of Boston.
Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.
Related records
- located in — Boston
Identity
- Identifier
- urn:lemay:boston:entity:m-street-beach
- Canonical URL
- https://boston.fyi/place/m-street-beach
- As JSON
- https://boston.fyi/place/m-street-beach.json
- Version
- 1 · last changed 2 September 2026
Provenance
- Source
- City of Boston Open Data Portal (Analyze Boston) — source of record
- License
- Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public_domain)
- Retrieved
- 2 September 2026
- Source identifier
- 42
- Attribution
- City of Boston
- Rights as stated
- Open Data Commons Public Domain Dedication and License (PDDL)
Transform ladder
| # | Operation | Description | Tool |
|---|---|---|---|
| 1 | fetch | retrieved the dataset's GeoJSON from the City of Boston open-data portal | archive-ingest 0.1.0 |
| 2 | normalize | the source's own name field became the record title; no name was supplied by the archive | archive-ingest 0.1.0 |
| 3 | reproject | the source is WGS 84 (EPSG:4326); geometry was set to that SRID without alteration of coordinates | archive-ingest 0.1.0 |
| 4 | externalize-boundary | The boundary left the inline page graph and became two preserved holdings: the exact coordinates at /asset/cae77b2985c7ccdb3e6ff87369c7b364/m-street-beach.geojson and a static map rendered server-side at /asset/827071acc68e05fc9b61f42559ed2f19/m-street-beach.svg. The stored geometry is unchanged; the record graph now addresses it instead of carrying it. | archive-ingest 0.1.0 |