# shape of Chilson Impoundment

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08>

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

Location: 42.51548, -83.86160 (box -83.86485, 42.50680, -83.85835, 42.52415; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 623202](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa99ff7dedc)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-83.863143 42.524151, -83.863569 42.523647, -83.863219 42.522023, -83.864116 42.521593, -83.864848 42.520496, -83.864365 42.517448, -83.863653 42.516527, -83.86419 42.515287, -83.862565 42.51395, -83.86206 42.513942, -83.862596 42.513697, -83.861948 42.510395, -83.862114 42.509577, -83.862719 42.509172, -83.862644 42.508232, -83.862098 42.507069, -83.860668 42.5068, -83.859057 42.507815, -83.859023 42.51107, -83.861919 42.513914, -83.860179 42.514467, -83.859823 42.515368, -83.859642 42.514762, -83.858826 42.514808, -83.858346 42.515543, -83.85945 42.517521, -83.860921 42.518165, -83.861533 42.519053, -83.862254 42.518891, -83.863127 42.520071, -83.863143 42.524151), (-83.859772 42.510684, -83.860306 42.510278, -83.860563 42.510505, -83.860233 42.511068, -83.859772 42.510684))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa2abdfd7ac)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.51548&mlon=-83.86160#map=14/42.51548/-83.86160) (42.51548, -83.86160)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.51548,-83.86160)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Chilson Impoundment](https://ontology.bommaritollc.com/id/01a0ddfe-af51-7779-8cc5-4456952c3797)
- Geometry of (1; `geo:hasGeometry`):
  - [Chilson Impoundment](https://ontology.bommaritollc.com/id/01a0ddfe-af51-7779-8cc5-4456952c3797)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08)
Cite as: shape of Chilson Impoundment. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-c6a3-71a0-82c2-4fa3db1b2c08
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.