# shape of Opal Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4>

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

Location: 46.24977, -89.12910 (box -89.13067, 46.24859, -89.12754, 46.25095; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 1621115](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b7de650b1a9)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-89.130571 46.249628, -89.128337 46.248594, -89.127536 46.249464, -89.127563 46.250278, -89.12838 46.250947, -89.12957 46.250925, -89.130668 46.250184, -89.130571 46.249628))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b76818282c9)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.24977&mlon=-89.12910#map=14/46.24977/-89.12910) (46.24977, -89.12910)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.24977,-89.12910)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Opal Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d715-7389-8e0d-a03219b73ebf)
- Geometry of (1; `geo:hasGeometry`):
  - [Opal Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d715-7389-8e0d-a03219b73ebf)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4)
Cite as: shape of Opal Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-ddc2-7336-b16c-0b772741cdd4
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.