Proof of concept.This is an unofficial demo built by Datopian from the City of Newton's public data. The official portal is newton-open-geo-data-newtonmagis.hub.arcgis.com. Questions or feedback: hello@datopian.com

A PortalJS proof of concept · data from the City of Newton's ArcGIS Hub

Trails

Trails - City of Newton MA

Records
2,084
Formats
5
Last updated
Jun 12, 2025

Download & API

Trails (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
Trails (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
Trails (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
Trails (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
Namestring
Typestring5 values: Walking Path (1,075), Minor Trail (508), Major Trail (459)…
Sitestring
Creatorstring4 values: NewtonGIS (1,894), Newton Conservators (120), Town of Wellesley (67)…
Createddatetime
Editorstring1 values: NewtonGIS (2,007)
Editeddatetime
Sourcestring11 values: Aerial Photography (1,289), Newton Conservators (257), GPS (163)…
Methodstring4 values: Orthos-Digitized (1,344), Scanned-Digitized (362), GPS (202)…
SegmentIDstring
SurfaceTypestring11 values: Sidewalk (1,007), Footpath (799), Paved (167)…
Colorstring6 values: Blue (19), Red (14), White (12)…
Accessibleinteger0 to 2
Displayinteger0 to 2