# shape of O'Brien Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6>

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

Location: 44.64126, -83.88268 (box -83.88470, 44.64050, -83.88065, 44.64201; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 1621077](https://ontology.bommaritollc.com/id/01a0de2c-ddbc-7249-9e57-52feb162ead5)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-83.883625 44.640503, -83.880918 44.640864, -83.880649 44.641822, -83.882997 44.642013, -83.884632 44.641551, -83.884703 44.640901, -83.883625 44.640503))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b5f508f75b8)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.64126&mlon=-83.88268#map=14/44.64126/-83.88268) (44.64126, -83.88268)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.64126,-83.88268)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [O'Brien Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a)
- Geometry of (1; `geo:hasGeometry`):
  - [O'Brien Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6)
Cite as: shape of O'Brien Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.