# Union Lake

Union Lake is a reservoir in [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.9 km²), in the [Woodruff Creek-Huron River (HUC10 0410001301)](https://ontology.bommaritollc.com/id/01a0de92-1f1b-75ba-bc21-5eb919c0aadf) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460)

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

Location: 42.60649, -83.43450 (box -83.44714, 42.59960, -83.42126, 42.61347; west, south, east, north)

- `adms:identifier`: [gnis 1615349](https://ontology.bommaritollc.com/id/01a0ddfe-cd63-7086-b4c5-1ec3747f32b9)
- `dcterms:type`: [reservoir](https://ontology.bommaritollc.com/vocab/geo/gnisReservoir)
- `geo:hasDefaultGeometry`: [shape of Union Lake](https://ontology.bommaritollc.com/id/01a0de2c-d7e2-7625-b536-48af5771c873)
- `geo:hasGeometry`:
  - [point of Union Lake](https://ontology.bommaritollc.com/id/01a0ddff-08b6-74e7-91d3-fbaa5ed1e980)
  - [shape of Union Lake](https://ontology.bommaritollc.com/id/01a0de2c-d7e2-7625-b536-48af5771c873)
- `geo:hasMetricArea`: 1919850.8 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Woodruff Creek-Huron River (HUC10 0410001301)](https://ontology.bommaritollc.com/id/01a0de92-1f1b-75ba-bc21-5eb919c0aadf)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645bf7bc3033)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5f78-703e-b0eb-4402aafd86df)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1911-72f6-ac8e-2c6c2a7c6598)
- `schema:containedInPlace`:
  - [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460)
  - [West Bloomfield Township](https://ontology.bommaritollc.com/id/01a0ca47-63b6-7457-ba98-ff81501d183c)
  - [Commerce Township](https://ontology.bommaritollc.com/id/01a0ca47-694b-7616-94b2-403830e99f0a)
- `skos:prefLabel`: Union Lake

## Elsewhere

- [Wikidata Q25238483](https://www.wikidata.org/wiki/Q25238483) (proposed match (exactMatch))
- [USGS GNIS 1615349](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1615349) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.60649&mlon=-83.43450#map=14/42.60649/-83.43450) (42.60649, -83.43450)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.60649,-83.43450)
- [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/Q25238483 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-77f2-72c2-bc8d-f366bdb0f6a2)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0)
Cite as: Union Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-cd62-765c-a2a2-645ce5310fd0
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.