# Grays Reef

Grays Reef is a bar in [Lake Michigan](https://ontology.bommaritollc.com/id/01a0ddfe-da8b-736c-b10c-b5ac4195f147), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Lake Michigan (HUC10 0419000002)](https://ontology.bommaritollc.com/id/01a0de92-1f2c-768f-8a9b-4fde379fd131) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Lake Michigan](https://ontology.bommaritollc.com/id/01a0ddfe-da8b-736c-b10c-b5ac4195f147)

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

Location: 45.80001, -85.25035 (box -85.25035, 45.80001, -85.25035, 45.80001; west, south, east, north)

- `adms:identifier`: [gnis 1617075](https://ontology.bommaritollc.com/id/01a0ddfe-d014-759a-a476-5719a551ae9f)
- `dcterms:type`: [bar](https://ontology.bommaritollc.com/vocab/geo/gnisBar)
- `geo:hasDefaultGeometry`: [point of Grays Reef](https://ontology.bommaritollc.com/id/01a0ddff-0bb8-7771-9c9f-10cc4b03701a)
- `geo:hasGeometry`: [point of Grays Reef](https://ontology.bommaritollc.com/id/01a0ddff-0bb8-7771-9c9f-10cc4b03701a)
- **in watershed** (`bcgeo:inWatershed`): [Lake Michigan (HUC10 0419000002)](https://ontology.bommaritollc.com/id/01a0de92-1f2c-768f-8a9b-4fde379fd131)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c1ffc4a364)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-6175-75d1-a836-aebd8144e8a0)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-dc55-74cf-9e60-8c0e983eca01)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1951-7385-bfba-4bbf6ff8b7ca)
- `schema:containedInPlace`:
  - [Charlevoix County](https://ontology.bommaritollc.com/id/01a0ca47-5d5f-72de-884a-0609c8201bf0)
  - [St. James Township](https://ontology.bommaritollc.com/id/01a0ca47-687f-7307-906f-157107619edc)
  - [Lake Michigan](https://ontology.bommaritollc.com/id/01a0ddfe-da8b-736c-b10c-b5ac4195f147)
- `skos:altLabel`:
  - Gray Reef
  - Gray's Reef
- `skos:prefLabel`: Grays Reef

## Elsewhere

- [Wikidata Q49616891](https://www.wikidata.org/wiki/Q49616891) (proposed match (exactMatch))
- [USGS GNIS 1617075](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1617075) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.80001&mlon=-85.25035#map=14/45.80001/-85.25035) (45.80001, -85.25035)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.80001,-85.25035)
- [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/Q49616891 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-781c-74a5-9f34-63c487aefe80)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e)
Cite as: Grays Reef. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-d013-774a-b34e-99c2b5e8312e
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.