# Keystone Bay

Keystone Bay is a bay in [Lake Superior](https://ontology.bommaritollc.com/id/01a0ddfe-d154-7649-b19b-081f619c450a), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Lake Superior (HUC10 0418000002)](https://ontology.bommaritollc.com/id/01a0de92-1f28-711b-9f7e-612909962997) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Lake Superior](https://ontology.bommaritollc.com/id/01a0ddfe-d154-7649-b19b-081f619c450a)

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

Location: 47.40213, -87.74872 (box -87.74872, 47.40213, -87.74872, 47.40213; west, south, east, north)

- `adms:identifier`: [gnis 629647](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fddea5ab940e)
- `dcterms:type`: [bay](https://ontology.bommaritollc.com/vocab/geo/gnisBay)
- `geo:hasDefaultGeometry`: [point of Keystone Bay](https://ontology.bommaritollc.com/id/01a0ddfe-f09a-73be-b855-4ee32a1efe91)
- `geo:hasGeometry`: [point of Keystone Bay](https://ontology.bommaritollc.com/id/01a0ddfe-f09a-73be-b855-4ee32a1efe91)
- **in watershed** (`bcgeo:inWatershed`): [Lake Superior (HUC10 0418000002)](https://ontology.bommaritollc.com/id/01a0de92-1f28-711b-9f7e-612909962997)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd2d1188ccf)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-50fe-72ab-a493-40498d70cf7d)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-db7c-70c7-a1d2-c326ff62538e)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1939-71b3-adca-17a7cd9aeac4)
- `schema:containedInPlace`:
  - [Keweenaw County](https://ontology.bommaritollc.com/id/01a0ca47-5d2f-7501-b2ba-1fe0d1e4fc6a)
  - [Grant Township](https://ontology.bommaritollc.com/id/01a0ca47-70b6-7620-8fe0-e460baaefc02)
  - [Lake Superior](https://ontology.bommaritollc.com/id/01a0ddfe-d154-7649-b19b-081f619c450a)
- `skos:altLabel`: Union Bay
- `skos:prefLabel`: Keystone Bay

## Elsewhere

- [Wikidata Q49381535](https://www.wikidata.org/wiki/Q49381535) (proposed match (exactMatch))
- [USGS GNIS 629647](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/629647) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=47.40213&mlon=-87.74872#map=14/47.40213/-87.74872) (47.40213, -87.74872)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=47.40213,-87.74872)
- [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/Q49381535 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-75c1-73a5-a6bd-39d481b23bd8)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0)
Cite as: Keystone Bay. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-bab1-74d0-b7c5-fdd3af0828d0
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.