# Sunken Lake

Sunken Lake is a lake in [Posen Township](https://ontology.bommaritollc.com/id/01a0ca47-7903-720b-9d5e-a82d3f3fc3cc), [Presque Isle County](https://ontology.bommaritollc.com/id/01a0ca47-5db9-75f0-a5ba-b8b8e4da260f), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (30.0 ha), in the [North Branch Thunder Bay River (HUC10 0407000604)](https://ontology.bommaritollc.com/id/01a0de92-1e35-7670-8c59-8a617c4607d1) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Presque Isle County](https://ontology.bommaritollc.com/id/01a0ca47-5db9-75f0-a5ba-b8b8e4da260f) › [Posen Township](https://ontology.bommaritollc.com/id/01a0ca47-7903-720b-9d5e-a82d3f3fc3cc)

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

Location: 45.21165, -83.71846 (box -83.72601, 45.20529, -83.71041, 45.21367; west, south, east, north)

- `adms:identifier`: [gnis 639079](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d5797a2ab68b)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Sunken Lake](https://ontology.bommaritollc.com/id/01a0de2c-d6dd-700c-922d-10715294a58c)
- `geo:hasGeometry`:
  - [point of Sunken Lake](https://ontology.bommaritollc.com/id/01a0ddff-060a-772a-9450-5d5a7150efce)
  - [shape of Sunken Lake](https://ontology.bommaritollc.com/id/01a0de2c-d6dd-700c-922d-10715294a58c)
- `geo:hasMetricArea`: 300069.8 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [North Branch Thunder Bay River (HUC10 0407000604)](https://ontology.bommaritollc.com/id/01a0de92-1e35-7670-8c59-8a617c4607d1)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d56f557687b4)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5dd2-77a9-9da9-f185af322d29)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-17f1-76b7-9dde-f37ce3710e1c)
- `schema:containedInPlace`:
  - [Presque Isle County](https://ontology.bommaritollc.com/id/01a0ca47-5db9-75f0-a5ba-b8b8e4da260f)
  - [Posen Township](https://ontology.bommaritollc.com/id/01a0ca47-7903-720b-9d5e-a82d3f3fc3cc)
- `skos:prefLabel`: Sunken Lake

## Elsewhere

- [Wikidata Q87920126](https://www.wikidata.org/wiki/Q87920126) (proposed match (exactMatch))
- [USGS GNIS 639079](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/639079) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.21165&mlon=-83.71846#map=14/45.21165/-83.71846) (45.21165, -83.71846)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.21165,-83.71846)
- [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/Q87920126 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-77cb-7174-8bf6-ad07ba4d3441)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422)
Cite as: Sunken Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-cb73-769f-bcd8-d570c502e422
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.