# Halfmoon Lake

Halfmoon Lake is a lake in [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (98.9 ha), in the [Portage River-Huron River (HUC10 0410001303)](https://ontology.bommaritollc.com/id/01a0de92-1f20-7237-a331-eaea07cbf3b1) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa)

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

Location: 42.41919, -84.01168 (box -84.02426, 42.41292, -83.99857, 42.42569; west, south, east, north)

- `adms:identifier`: [gnis 627630](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b432b4e2e0c0)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Halfmoon Lake](https://ontology.bommaritollc.com/id/01a0de2c-cb16-710e-b3e9-026d525d7fb0)
- `geo:hasGeometry`:
  - [point of Halfmoon Lake](https://ontology.bommaritollc.com/id/01a0ddfe-ed53-770f-b383-caed7f360de2)
  - [shape of Halfmoon Lake](https://ontology.bommaritollc.com/id/01a0de2c-cb16-710e-b3e9-026d525d7fb0)
- `geo:hasMetricArea`: 989054.6 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Portage River-Huron River (HUC10 0410001303)](https://ontology.bommaritollc.com/id/01a0de92-1f20-7237-a331-eaea07cbf3b1)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b429dab8476f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4e99-74a3-8612-0f575d5e23dc)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1916-77d8-b052-82d45c973730)
- `schema:containedInPlace`:
  - [Washtenaw County](https://ontology.bommaritollc.com/id/01a0ca47-5a16-75b9-a286-85a89060c472)
  - [Livingston County](https://ontology.bommaritollc.com/id/01a0ca47-5dbe-77e8-a023-5ae31fec89b3)
  - [Lyndon Township](https://ontology.bommaritollc.com/id/01a0ca47-694c-75ed-88e2-6bb572e99cb3)
  - [Dexter Township](https://ontology.bommaritollc.com/id/01a0ca47-6e34-7115-8e35-1b04c2664e5c)
  - [Putnam Township](https://ontology.bommaritollc.com/id/01a0ca47-791b-73fd-b9d2-ed59089c6b64)
- `skos:prefLabel`: Halfmoon Lake

## Elsewhere

- [Wikidata Q88273318](https://www.wikidata.org/wiki/Q88273318) (proposed match (exactMatch))
- [USGS GNIS 627630](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/627630) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.41919&mlon=-84.01168#map=14/42.41919/-84.01168) (42.41919, -84.01168)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.41919,-84.01168)
- [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/Q88273318 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-74b4-73b6-b2cd-466e5c0caef6)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42)
Cite as: Halfmoon Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-b72b-72bb-94ba-b42a7af7bf42
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.