# shape of Swan Marsh

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3>

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

Location: 45.99387, -85.81274 (box -85.81704, 45.99242, -85.80844, 45.99531; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 1614469](https://ontology.bommaritollc.com/id/01a0de2c-d709-74c2-8331-15eea6af49f5)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-85.816668 45.992423, -85.815632 45.994451, -85.813396 45.992737, -85.810906 45.99281, -85.810322 45.993332, -85.808998 45.993039, -85.808754 45.992664, -85.808439 45.992928, -85.810919 45.994741, -85.813771 45.9949, -85.814945 45.995309, -85.816657 45.994711, -85.817044 45.99398, -85.816438 45.993253, -85.817014 45.992677, -85.816668 45.992423))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-73332cc831a5)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.99387&mlon=-85.81274#map=14/45.99387/-85.81274) (45.99387, -85.81274)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.99387,-85.81274)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Swan Marsh](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283)
- Geometry of (1; `geo:hasGeometry`):
  - [Swan Marsh](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3)
Cite as: shape of Swan Marsh. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.