# shape of Irwin Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b>

Type: [geo:Geometry](http://www.opengis.net/ont/geosparql#Geometry)

Location: 46.21951, -86.62505 (box -86.62628, 46.21763, -86.62382, 46.22139; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 1620329](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bd2ef41b509)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-86.625439 46.220958, -86.625816 46.221387, -86.626283 46.221241, -86.626131 46.219254, -86.625155 46.218658, -86.624773 46.217812, -86.62385 46.217628, -86.623821 46.218347, -86.625439 46.220958))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bcb765b9ba9)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.21951&mlon=-86.62505#map=14/46.21951/-86.62505) (46.21951, -86.62505)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.21951,-86.62505)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Irwin Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d4f2-70e7-9f37-7d81e079d3d1)
- Geometry of (1; `geo:hasGeometry`):
  - [Irwin Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d4f2-70e7-9f37-7d81e079d3d1)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b)
Cite as: shape of Irwin Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0de2c-dca6-76a8-9e4f-2bccc846243b
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.