# shape of Birch Lake

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92>

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

Location: 41.87870, -85.85643 (box -85.86372, 41.87154, -85.84915, 41.88586; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 621408](https://ontology.bommaritollc.com/id/01a0de2c-c4e3-76b0-ba3c-90313d9e5400)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTIPOLYGON (((-85.849831 41.875077, -85.850951 41.878874, -85.849826 41.880682, -85.85026 41.881616, -85.857213 41.88342, -85.858442 41.884394, -85.858674 41.885765, -85.859301 41.885861, -85.860008 41.885302, -85.86345 41.879046, -85.863716 41.877705, -85.863343 41.87584, -85.862572 41.875262, -85.861452 41.87514, -85.859273 41.875593, -85.857103 41.873972, -85.854737 41.872984, -85.853429 41.871541, -85.851402 41.872008, -85.849397 41.873238, -85.849148 41.873881, -85.849978 41.874589, -85.849831 41.875077))) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-7234c1aafb32)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.87870&mlon=-85.85643#map=14/41.87870/-85.85643) (41.87870, -85.85643)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.87870,-85.85643)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Birch Lake](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b)
- Geometry of (1; `geo:hasGeometry`):
  - [Birch Lake](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92)
Cite as: shape of Birch Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.