# shape of Porterfield Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62>

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

Location: 46.26515, -87.94928 (box -87.95396, 46.26303, -87.94459, 46.26726; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 635310](https://ontology.bommaritollc.com/id/01a0de2c-d337-725d-a1cc-cd78c9538edc)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-87.948753 46.263419, -87.947907 46.263761, -87.948318 46.264928, -87.947793 46.265664, -87.944799 46.265846, -87.94459 46.266374, -87.94512 46.267262, -87.947142 46.267249, -87.948547 46.2654, -87.950712 46.26511, -87.952083 46.26594, -87.953963 46.265275, -87.952954 46.265012, -87.953466 46.26377, -87.952821 46.263033, -87.948753 46.263419))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb2f1252cdf2)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.26515&mlon=-87.94928#map=14/46.26515/-87.94928) (46.26515, -87.94928)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.26515,-87.94928)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Porterfield Lake](https://ontology.bommaritollc.com/id/01a0ddfe-c4e0-77ae-99af-37f1b7769df4)
- Geometry of (1; `geo:hasGeometry`):
  - [Porterfield Lake](https://ontology.bommaritollc.com/id/01a0ddfe-c4e0-77ae-99af-37f1b7769df4)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62)
Cite as: shape of Porterfield Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-d336-749d-a89e-fb30aa52bd62
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.