# shape of Porter Township

shape of Porter Township is a boundary representation.

IRI: <https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a>

Type: [geo:Geometry](http://www.opengis.net/ont/geosparql#Geometry), [boundary representation](https://ontology.bommaritollc.com/vocab/geo/BoundaryRepresentation)

Location: 41.39096, -87.14272 (box -87.21995, 41.34732, -87.06550, 41.43460; west, south, east, north)

- `adms:identifier`: [census-tiger-feature 2025/0600000US1812761182](https://ontology.bommaritollc.com/id/01a0d1a3-8973-738a-97ce-18a46f7aaae4)
- `dcterms:date`: 2025-01-01 (xsd:date)
- `dcterms:source`: [Census TIGER/Line 2025: county subdivisions, state 18](https://ontology.bommaritollc.com/id/01a0d1a3-27b7-71ee-b41a-bedbaf1005cc)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS83> POLYGON ((-87.219762 41.347322, -87.065497 41.347481, -87.065632 41.3912, -87.084776 41.391311, -87.085142 41.434578, -87.219625 41.434595, -87.219946 41.406239, -87.219762 41.347322)) (geo:wktLiteral)
- `geo:hasMetricArea`: 116962106 (xsd:double)
- `prov:wasDerivedFrom`: [evidence from https://www2.census.gov/geo/tiger/TIGER2025/COUSUB/tl\_2025\_18\_cousub.zip](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9286486ba0da)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.39096&mlon=-87.14272#map=14/41.39096/-87.14272) (41.39096, -87.14272)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.39096,-87.14272)
- [Source](https://www2.census.gov/geo/tiger/TIGER2025/COUSUB/tl_2025_18_cousub.zip) (www2.census.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Porter Township](https://ontology.bommaritollc.com/id/01a0ca47-61f5-757c-982d-3d9472a57708)
- Geometry of (1; `geo:hasGeometry`):
  - [Porter Township](https://ontology.bommaritollc.com/id/01a0ca47-61f5-757c-982d-3d9472a57708)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a.nt), [HTML](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a)
Cite as: shape of Porter Township. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9287f69ed49a
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.