# shape of Chalmers Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee>

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

Location: 42.56265, -83.29796 (box -83.30049, 42.56111, -83.29543, 42.56420; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 623047](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29dfc8d2bc62)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-83.29921 42.561481, -83.297868 42.562399, -83.295428 42.563099, -83.295793 42.563838, -83.297614 42.564199, -83.298923 42.563723, -83.299908 42.562952, -83.30049 42.561684, -83.29966 42.561599, -83.299646 42.561111, -83.29921 42.561481))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d87d06ab50)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.56265&mlon=-83.29796#map=14/42.56265/-83.29796) (42.56265, -83.29796)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.56265,-83.29796)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Chalmers Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af22-7191-b485-dc5c28643bb8)
- Geometry of (1; `geo:hasGeometry`):
  - [Chalmers Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af22-7191-b485-dc5c28643bb8)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee)
Cite as: shape of Chalmers Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-c68c-72b5-a607-29d902f339ee
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.