# shape of Blackmer Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e>

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

Location: 43.51022, -86.23469 (box -86.23659, 43.50940, -86.23279, 43.51103; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 1619243](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd0e72f82d3c)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-86.232886 43.509942, -86.232788 43.510334, -86.233451 43.510806, -86.235473 43.511031, -86.236595 43.509841, -86.236347 43.509455, -86.235147 43.509402, -86.232886 43.509942))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd07450f8469)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.51022&mlon=-86.23469#map=14/43.51022/-86.23469) (43.51022, -86.23469)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.51022,-86.23469)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Blackmer Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d23c-72ea-a078-9de01f3176c4)
- Geometry of (1; `geo:hasGeometry`):
  - [Blackmer Lake](https://ontology.bommaritollc.com/id/01a0ddfe-d23c-72ea-a078-9de01f3176c4)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e)
Cite as: shape of Blackmer Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-da9b-7072-b394-dd089f0bcf2e
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.