# shape of Roach Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c>

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

Location: 46.26871, -84.21556 (box -84.21641, 46.26792, -84.21472, 46.26950; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 636024](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b90141c00b)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-84.21542 46.267924, -84.214719 46.269141, -84.215533 46.269504, -84.216407 46.268135, -84.21542 46.267924))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b28168b198)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.26871&mlon=-84.21556#map=14/46.26871/-84.21556) (46.26871, -84.21556)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.26871,-84.21556)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Roach Lake](https://ontology.bommaritollc.com/id/01a0ddfe-c663-774b-853c-544755f57785)
- Geometry of (1; `geo:hasGeometry`):
  - [Roach Lake](https://ontology.bommaritollc.com/id/01a0ddfe-c663-774b-853c-544755f57785)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c)
Cite as: shape of Roach Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-d3f5-72a4-9760-58b35ae5db0c
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.