# Passage Island

Passage Island is an island 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 [Nodaway Point-Frontal Lake Superior (HUC10 0418000001)](https://ontology.bommaritollc.com/id/01a0de92-1f26-72d2-95cf-36dfd969113e) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138>

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:Landform](https://schema.org/Landform), [schema:Place](https://schema.org/Place)

Location: 48.23348, -88.35090 (box -88.35090, 48.23348, -88.35090, 48.23348; west, south, east, north)

- `adms:identifier`: [gnis 634447](https://ontology.bommaritollc.com/id/01a0ddfe-c2fc-7025-9088-b7cef12d4632)
- `dcterms:type`: [island](https://ontology.bommaritollc.com/vocab/geo/gnisIsland)
- `geo:hasDefaultGeometry`: [point of Passage Island](https://ontology.bommaritollc.com/id/01a0ddfe-fb7a-7097-8349-5ecb8f903c22)
- `geo:hasGeometry`: [point of Passage Island](https://ontology.bommaritollc.com/id/01a0ddfe-fb7a-7097-8349-5ecb8f903c22)
- **in watershed** (`bcgeo:inWatershed`): [Nodaway Point-Frontal Lake Superior (HUC10 0418000001)](https://ontology.bommaritollc.com/id/01a0de92-1f26-72d2-95cf-36dfd969113e)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b73a06be875)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-57d5-730a-a7b6-bc4977595e5f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-dbba-75b9-a5fe-73a905786390)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1923-71fb-aada-d53e5a05907d)
- `schema:containedInPlace`:
  - [Keweenaw County](https://ontology.bommaritollc.com/id/01a0ca47-5d2f-7501-b2ba-1fe0d1e4fc6a)
  - [Houghton Township](https://ontology.bommaritollc.com/id/01a0ca47-7cd1-7618-8ec3-65ca0f1f1532)
  - [Lake Superior](https://ontology.bommaritollc.com/id/01a0ddfe-d154-7649-b19b-081f619c450a)
- `skos:prefLabel`: Passage Island

## Elsewhere

- [Wikidata Q7142464](https://www.wikidata.org/wiki/Q7142464) (proposed match (exactMatch))
- [USGS GNIS 634447](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/634447) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=48.23348&mlon=-88.35090#map=14/48.23348/-88.35090) (48.23348, -88.35090)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=48.23348,-88.35090)
- [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/Q7142464 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-76bf-7651-827b-85645cfb1eb3)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138)
Cite as: Passage Island. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-c2fb-779c-beee-8b742596d138
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.