# Birch Lake

Birch Lake is a lake in [Porter Township](https://ontology.bommaritollc.com/id/01a0ca47-78ff-7657-84c4-b16833abea64), [Cass County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-981ba967c897), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.1 km²), in the [Mill Creek-Saint Joseph River (HUC10 0405000113)](https://ontology.bommaritollc.com/id/01a0de92-1d26-758e-8855-6bb736f20a10) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Cass County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-981ba967c897) › [Porter Township](https://ontology.bommaritollc.com/id/01a0ca47-78ff-7657-84c4-b16833abea64)

Type: [geo:Feature](http://www.opengis.net/ont/geosparql#Feature), [schema:LakeBodyOfWater](https://schema.org/LakeBodyOfWater), [schema:Place](https://schema.org/Place)

Location: 41.87831, -85.85631 (box -85.86372, 41.87154, -85.84915, 41.88586; west, south, east, north)

- `adms:identifier`: [gnis 621408](https://ontology.bommaritollc.com/id/01a0ddfe-ac2c-75d3-88b2-0a0db02781b8)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Birch Lake](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92)
- `geo:hasGeometry`:
  - [point of Birch Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e2dc-747b-8c22-8fefc6bcb542)
  - [shape of Birch Lake](https://ontology.bommaritollc.com/id/01a0de2c-c4e2-72f5-bc11-723500a8ee92)
- `geo:hasMetricArea`: 1131662.7 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Mill Creek-Saint Joseph River (HUC10 0405000113)](https://ontology.bommaritollc.com/id/01a0de92-1d26-758e-8855-6bb736f20a10)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc3159c13bd)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-461d-77e6-8ca1-68c6a087d8a3)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-169f-745d-a1a8-73ae56aa9f60)
- `schema:containedInPlace`:
  - [Cass County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-981ba967c897)
  - [Porter Township](https://ontology.bommaritollc.com/id/01a0ca47-78ff-7657-84c4-b16833abea64)
- `skos:prefLabel`: Birch Lake

## Elsewhere

- [Wikidata Q33232048](https://www.wikidata.org/wiki/Q33232048) (proposed match (exactMatch))
- [USGS GNIS 621408](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/621408) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.87831&mlon=-85.85631#map=14/41.87831/-85.85631) (41.87831, -85.85631)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.87831,-85.85631)
- [Source](https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames_MI_Text.zip) (prd-tnm.s3.amazonaws.com)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)
- [Source](https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer) (hydro.nationalmap.gov)

## Pointing here

- Mappings (1; `owl:annotatedSource`):
  - [exactMatch http://www.wikidata.org/entity/Q33232048 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7385-7686-9de9-e4d0f93224d8)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b)
Cite as: Birch Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-ac2b-7596-89fc-1cc4471c124b
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.