# Gravel Island

Gravel Island is an island in [Lake Huron](https://ontology.bommaritollc.com/id/01a0ddfe-dba9-7007-b9a4-2e346853a6ba), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Drummond Island (HUC10 0424000201)](https://ontology.bommaritollc.com/id/01a0de92-1f4f-7610-999d-aeeffda6e949) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Lake Huron](https://ontology.bommaritollc.com/id/01a0ddfe-dba9-7007-b9a4-2e346853a6ba)

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

Location: 45.93446, -83.76750 (box -83.76750, 45.93446, -83.76750, 45.93446; west, south, east, north)

- `adms:identifier`: [gnis 627241](https://ontology.bommaritollc.com/id/01a0ddfe-b6a0-7370-8abb-316a0bba8459)
- `dcterms:type`: [island](https://ontology.bommaritollc.com/vocab/geo/gnisIsland)
- `geo:hasDefaultGeometry`: [point of Gravel Island](https://ontology.bommaritollc.com/id/01a0ddfe-eae8-7698-a3ca-a4607f8ea3b2)
- `geo:hasGeometry`: [point of Gravel Island](https://ontology.bommaritollc.com/id/01a0ddfe-eae8-7698-a3ca-a4607f8ea3b2)
- **in watershed** (`bcgeo:inWatershed`): [Drummond Island (HUC10 0424000201)](https://ontology.bommaritollc.com/id/01a0de92-1f4f-7610-999d-aeeffda6e949)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498ba01b7a8e)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4de9-7006-a709-0378354e87d3)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-db61-749b-aafb-e5c555227601)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1981-77ee-8585-ea2301f4465c)
- `schema:containedInPlace`:
  - [Chippewa County](https://ontology.bommaritollc.com/id/01a0ca47-5c74-7657-97c2-9bfdfd3bc0fc)
  - [Drummond Township](https://ontology.bommaritollc.com/id/01a0ca47-6317-77b8-a79c-9e66cbf8a764)
  - [Lake Huron](https://ontology.bommaritollc.com/id/01a0ddfe-dba9-7007-b9a4-2e346853a6ba)
- `skos:prefLabel`: Gravel Island

## Elsewhere

- [Wikidata Q34767809](https://www.wikidata.org/wiki/Q34767809) (proposed match (exactMatch))
- [USGS GNIS 627241](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/627241) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.93446&mlon=-83.76750#map=14/45.93446/-83.76750) (45.93446, -83.76750)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.93446,-83.76750)
- [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/Q34767809 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-74aa-718a-9b23-1fe86cb9c255)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6)
Cite as: Gravel Island. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-b69f-73d0-927f-498c513696f6
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.