# shape of Chain Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e>

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

Location: 41.85690, -85.89323 (box -85.89668, 41.85417, -85.88978, 41.85963; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 623035](https://ontology.bommaritollc.com/id/01a0de2c-c689-71f4-a70d-142a31e22e5f)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-85.889779 41.858553, -85.890527 41.859366, -85.892334 41.859631, -85.893671 41.85788, -85.896198 41.857595, -85.896676 41.855762, -85.896164 41.854169, -85.894643 41.855124, -85.893437 41.856595, -85.891388 41.857264, -85.889779 41.858553))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378c67734727)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.85690&mlon=-85.89323#map=14/41.85690/-85.89323) (41.85690, -85.89323)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.85690,-85.89323)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Chain Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af1d-71e7-9816-20598f5eaef6)
- Geometry of (1; `geo:hasGeometry`):
  - [Chain Lake](https://ontology.bommaritollc.com/id/01a0ddfe-af1d-71e7-9816-20598f5eaef6)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e)
Cite as: shape of Chain Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-c688-70b7-97c1-378ddf6f768e
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.