# Keopfgen Lake

Keopfgen Lake is a lake in [McMillan Township](https://ontology.bommaritollc.com/id/01a0ca47-774e-71b1-9a0c-1325186bd6d8), [Luce County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3973ec5773e), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (12.8 ha), in the [Hurricane River-Frontal Lake Superior (HUC10 0402020105)](https://ontology.bommaritollc.com/id/01a0de92-1c6d-755e-9099-5983709661fb) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Luce County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3973ec5773e) › [McMillan Township](https://ontology.bommaritollc.com/id/01a0ca47-774e-71b1-9a0c-1325186bd6d8)

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

Location: 46.65600, -85.77676 (box -85.77991, 46.65229, -85.77432, 46.65946; west, south, east, north)

- `adms:identifier`: [gnis 629615](https://ontology.bommaritollc.com/id/01a0ddfe-baa9-7199-8434-23b4eeaaec29)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Keopfgen Lake](https://ontology.bommaritollc.com/id/01a0de2c-cd3e-7011-930d-a88f0086f071)
- `geo:hasGeometry`:
  - [point of Keopfgen Lake](https://ontology.bommaritollc.com/id/01a0ddfe-f096-77d4-8ecb-fc770793fbe4)
  - [shape of Keopfgen Lake](https://ontology.bommaritollc.com/id/01a0de2c-cd3e-7011-930d-a88f0086f071)
- `geo:hasMetricArea`: 127723.7 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Hurricane River-Frontal Lake Superior (HUC10 0402020105)](https://ontology.bommaritollc.com/id/01a0de92-1c6d-755e-9099-5983709661fb)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c951b494002f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-50f9-7624-8684-0a64954bce40)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-15c1-76a6-89f9-a1f9d34fa5f1)
- `schema:containedInPlace`:
  - [Luce County](https://ontology.bommaritollc.com/id/01a0ca47-5c41-7728-b7f8-b3973ec5773e)
  - [McMillan Township](https://ontology.bommaritollc.com/id/01a0ca47-774e-71b1-9a0c-1325186bd6d8)
- `skos:prefLabel`: Keopfgen Lake

## Elsewhere

- [Wikidata Q33266270](https://www.wikidata.org/wiki/Q33266270) (proposed match (exactMatch))
- [USGS GNIS 629615](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/629615) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.65600&mlon=-85.77676#map=14/46.65600/-85.77676) (46.65600, -85.77676)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.65600,-85.77676)
- [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/Q33266270 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-75c0-74c3-9238-0b254e005904)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817)
Cite as: Keopfgen Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-baa8-710d-8d37-c952c1da3817
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.