# Birch Island

Birch 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 [Lake Huron (HUC10 0424000202)](https://ontology.bommaritollc.com/id/01a0de92-1f53-728b-a241-32e786ea8de4) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e>

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: 45.97502, -84.43865 (box -84.43865, 45.97502, -84.43865, 45.97502; west, south, east, north)

- `adms:identifier`: [gnis 621404](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f71832399932)
- `dcterms:type`: [island](https://ontology.bommaritollc.com/vocab/geo/gnisIsland)
- `geo:hasDefaultGeometry`: [point of Birch Island](https://ontology.bommaritollc.com/id/01a0ddfe-e2db-7707-8558-4a1a182ddc7c)
- `geo:hasGeometry`: [point of Birch Island](https://ontology.bommaritollc.com/id/01a0ddfe-e2db-7707-8558-4a1a182ddc7c)
- **in watershed** (`bcgeo:inWatershed`): [Lake Huron (HUC10 0424000202)](https://ontology.bommaritollc.com/id/01a0de92-1f53-728b-a241-32e786ea8de4)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70ea90c8fcf)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-461b-70d0-b65d-88c7c410df59)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-db1f-74f9-94a4-15242358f0d1)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-19d2-746b-bdc2-d68f03d10216)
- `schema:containedInPlace`:
  - [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80)
  - [Clark Township](https://ontology.bommaritollc.com/id/01a0ca47-687e-7483-b3c3-56d787cd9d00)
  - [Lake Huron](https://ontology.bommaritollc.com/id/01a0ddfe-dba9-7007-b9a4-2e346853a6ba)
- `skos:prefLabel`: Birch Island

## Elsewhere

- [Wikidata Q34674128](https://www.wikidata.org/wiki/Q34674128) (proposed match (exactMatch))
- [USGS GNIS 621404](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/621404) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.97502&mlon=-84.43865#map=14/45.97502/-84.43865) (45.97502, -84.43865)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.97502,-84.43865)
- [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/Q34674128 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7384-7237-ac14-d4eb3fb49c48)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e)
Cite as: Birch Island. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-ac29-731e-b16b-f70f6c87fc0e
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.