# shape of Portage Township

shape of Portage Township is a boundary representation.

IRI: <https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1>

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

Location: 41.58511, -87.17346 (box -87.22293, 41.52115, -87.12399, 41.64907; west, south, east, north)

- `adms:identifier`: [census-tiger-feature 2025/0600000US1812761110](https://ontology.bommaritollc.com/id/01a0d1a3-8972-7502-b583-9282328216ce)
- `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 ((-87.220633 41.521614, -87.211553 41.521599, -87.210013 41.521152, -87.209391 41.52159, -87.123995 41.521234, -87.124699 41.593685, -87.144131 41.594109, -87.144216 41.605258, -87.144753 41.606821, -87.145043 41.631182, -87.144537 41.645667, -87.147069 41.646201, -87.145284 41.649071, -87.162367 41.645433, -87.162703 41.644324, -87.183347 41.641492, -87.222932 41.632596, -87.220633 41.521614)) (geo:wktLiteral)
- `geo:hasMetricArea`: 99191251 (xsd:double)
- `prov:wasDerivedFrom`: [evidence from https://www2.census.gov/geo/tiger/TIGER2025/COUSUB/tl\_2025\_18\_cousub.zip](https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650d17a1a4de)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.58511&mlon=-87.17346#map=14/41.58511/-87.17346) (41.58511, -87.17346)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.58511,-87.17346)
- [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`):
  - [Portage Township](https://ontology.bommaritollc.com/id/01a0ca47-78fe-716d-b5e5-347d75a610da)
- Geometry of (1; `geo:hasGeometry`):
  - [Portage Township](https://ontology.bommaritollc.com/id/01a0ca47-78fe-716d-b5e5-347d75a610da)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1.nt), [HTML](https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1)
Cite as: shape of Portage Township. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0d1a3-8971-729f-8f8d-650ea58c4df1
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.