# Greenfield Island

Greenfield Island is an island in [Manistique Lake](https://ontology.bommaritollc.com/id/01a0ddfe-bde5-72da-9022-e24cecd1d22c), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Manistique Lake (HUC10 0403011301)](https://ontology.bommaritollc.com/id/01a0de92-1ceb-7226-bcd6-1c5d52253851) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Manistique Lake](https://ontology.bommaritollc.com/id/01a0ddfe-bde5-72da-9022-e24cecd1d22c)

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

Location: 46.24110, -85.79346 (box -85.79346, 46.24110, -85.79346, 46.24110; west, south, east, north)

- `adms:identifier`: [gnis 627346](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2ff354faa97)
- `dcterms:type`: [island](https://ontology.bommaritollc.com/vocab/geo/gnisIsland)
- `geo:hasDefaultGeometry`: [point of Greenfield Island](https://ontology.bommaritollc.com/id/01a0ddfe-ed19-7586-8ef8-1e48385ae0e2)
- `geo:hasGeometry`: [point of Greenfield Island](https://ontology.bommaritollc.com/id/01a0ddfe-ed19-7586-8ef8-1e48385ae0e2)
- **in watershed** (`bcgeo:inWatershed`): [Manistique Lake (HUC10 0403011301)](https://ontology.bommaritollc.com/id/01a0de92-1ceb-7226-bcd6-1c5d52253851)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f589816dc4)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4e01-70e4-8855-351b37e03d13)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-db63-729e-b27b-932e847a9fb4)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1653-7002-bdb9-9882e96ed709)
- `schema:containedInPlace`:
  - [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80)
  - [Portage Township](https://ontology.bommaritollc.com/id/01a0ca47-78fd-75ce-809d-3cd93bf2810b)
  - [Manistique Lake](https://ontology.bommaritollc.com/id/01a0ddfe-bde5-72da-9022-e24cecd1d22c)
- `skos:prefLabel`: Greenfield Island

## Elsewhere

- [Wikidata Q49639735](https://www.wikidata.org/wiki/Q49639735) (proposed match (exactMatch))
- [USGS GNIS 627346](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/627346) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.24110&mlon=-85.79346#map=14/46.24110/-85.79346) (46.24110, -85.79346)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.24110,-85.79346)
- [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/Q49639735 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-74ad-763e-b5f2-e30b2475dae9)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4)
Cite as: Greenfield Island. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b6c6-7341-830a-f2f699f509e4
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.