# shape of Clack Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75>

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

Location: 42.87639, -83.18479 (box -83.18599, 42.87385, -83.18359, 42.87894; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 623322](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-609d4790151f)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-83.183586 42.87894, -83.18435 42.877522, -83.185134 42.87783, -83.185985 42.877463, -83.185857 42.875525, -83.184949 42.873845, -83.183849 42.874473, -83.18408 42.877364, -83.183586 42.87894))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6096c07e90c2)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.87639&mlon=-83.18479#map=14/42.87639/-83.18479) (42.87639, -83.18479)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.87639,-83.18479)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Clack Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af6c-767c-a242-fe886821b835)
- Geometry of (1; `geo:hasGeometry`):
  - [Clack Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af6c-767c-a242-fe886821b835)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75)
Cite as: shape of Clack Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-c6b0-71f1-81c2-6097ac021c75
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.