# Crystal Lake

Crystal Lake is a lake in [Somerset Township](https://ontology.bommaritollc.com/id/01a0ca47-7a68-7483-8fee-610b4af540c5), [Hillsdale County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3afdc858403), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Headwaters Grand River (HUC10 0405000401)](https://ontology.bommaritollc.com/id/01a0de92-1d62-735a-b562-311334647fab) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Hillsdale County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3afdc858403) › [Somerset Township](https://ontology.bommaritollc.com/id/01a0ca47-7a68-7483-8fee-610b4af540c5)

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

Location: 42.06421, -84.41189 (box -84.41189, 42.06421, -84.41189, 42.06421; west, south, east, north)

- `adms:identifier`: [gnis 624171](https://ontology.bommaritollc.com/id/01a0ddfe-b17a-77b3-8584-8c216f937cb0)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [point of Crystal Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e58a-7636-9766-f2ba1526440a)
- `geo:hasGeometry`: [point of Crystal Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e58a-7636-9766-f2ba1526440a)
- **in watershed** (`bcgeo:inWatershed`): [Headwaters Grand River (HUC10 0405000401)](https://ontology.bommaritollc.com/id/01a0de92-1d62-735a-b562-311334647fab)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182c4c8bf286)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4a13-7676-ba8d-43306aacf214)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-16e9-75d3-9f0a-8154e7542c01)
- `schema:containedInPlace`:
  - [Hillsdale County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3afdc858403)
  - [Somerset Township](https://ontology.bommaritollc.com/id/01a0ca47-7a68-7483-8fee-610b4af540c5)
- `skos:prefLabel`: Crystal Lake

## Elsewhere

- [Wikidata Q33242820](https://www.wikidata.org/wiki/Q33242820) (proposed match (exactMatch))
- [USGS GNIS 624171](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/624171) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.06421&mlon=-84.41189#map=14/42.06421/-84.41189) (42.06421, -84.41189)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.06421,-84.41189)
- [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/Q33242820 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7454-73b4-b85f-ee7bcaa59e50)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8)
Cite as: Crystal Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b179-73ba-aa4f-182dd4edc8a8
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.