# Duncan Lake

Duncan Lake is a lake in [Bethel Township](https://ontology.bommaritollc.com/id/01a0ca47-6bff-7795-a49f-6d3a3a47a9af), [Branch County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-980f16f909b8), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (2.1 ha), in the [Swan Creek-Saint Joseph River (HUC10 0405000104)](https://ontology.bommaritollc.com/id/01a0de92-1d11-725f-93de-58e11ff1c7ed) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Branch County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-980f16f909b8) › [Bethel Township](https://ontology.bommaritollc.com/id/01a0ca47-6bff-7795-a49f-6d3a3a47a9af)

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

Location: 41.87225, -85.14857 (box -85.15064, 41.87157, -85.14713, 41.87310; west, south, east, north)

- `adms:identifier`: [gnis 624985](https://ontology.bommaritollc.com/id/01a0ddfe-b306-7308-8079-252f83f7fb49)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Duncan Lake](https://ontology.bommaritollc.com/id/01a0de2c-c8e0-7732-875c-cd6e2fa7db48)
- `geo:hasGeometry`:
  - [point of Duncan Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e78c-773b-9eca-92257407db62)
  - [shape of Duncan Lake](https://ontology.bommaritollc.com/id/01a0de2c-c8e0-7732-875c-cd6e2fa7db48)
- `geo:hasMetricArea`: 20919.9 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Swan Creek-Saint Joseph River (HUC10 0405000104)](https://ontology.bommaritollc.com/id/01a0de92-1d11-725f-93de-58e11ff1c7ed)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-58552f459cb7)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4b16-77b3-9634-5dd22f40fea4)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1685-7112-875f-bf988d2dfc6c)
- `schema:containedInPlace`:
  - [Branch County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-980f16f909b8)
  - [Bethel Township](https://ontology.bommaritollc.com/id/01a0ca47-6bff-7795-a49f-6d3a3a47a9af)
- `skos:altLabel`:
  - Pork Barrel Lake
  - Pork Barrel
- `skos:prefLabel`: Duncan Lake

## Elsewhere

- [Wikidata Q88273478](https://www.wikidata.org/wiki/Q88273478) (proposed match (exactMatch))
- [USGS GNIS 624985](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/624985) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.87225&mlon=-85.14857#map=14/41.87225/-85.14857) (41.87225, -85.14857)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.87225,-85.14857)
- [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/Q88273478 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-746b-701c-a28d-79cab2cf7959)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f)
Cite as: Duncan Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b305-72d7-9b60-5856a03e2a3f
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.