# Portage Bay

Portage Bay is a bay in [Delta County](https://ontology.bommaritollc.com/id/01a0ca47-5c73-7777-b908-2b2e621f2c98), [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-c4ce-7558-a83d-b75f7911be34>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Delta County](https://ontology.bommaritollc.com/id/01a0ca47-5c73-7777-b908-2b2e621f2c98)

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

Location: 45.70886, -87.08041 (box -87.08041, 45.70886, -87.08041, 45.70886; west, south, east, north)

- `adms:identifier`: [gnis 635270](https://ontology.bommaritollc.com/id/01a0ddfe-c4cf-75f3-84a4-d7c7cb591132)
- `dcterms:type`: [bay](https://ontology.bommaritollc.com/vocab/geo/gnisBay)
- `geo:hasDefaultGeometry`: [point of Portage Bay](https://ontology.bommaritollc.com/id/01a0ddfe-fe19-739f-9606-e30affe796c9)
- `geo:hasGeometry`: [point of Portage Bay](https://ontology.bommaritollc.com/id/01a0ddfe-fe19-739f-9606-e30affe796c9)
- **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-c4ce-7558-a83d-b75ec2599da3)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5912-7225-939e-c00215e9cc9f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de86-dbcd-725d-9da6-98e2399e83dd)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1951-7385-bfba-4bbf6ff8b7ca)
- `schema:containedInPlace`:
  - [Delta County](https://ontology.bommaritollc.com/id/01a0ca47-5c73-7777-b908-2b2e621f2c98)
  - [Ford River Township](https://ontology.bommaritollc.com/id/01a0ca47-6f66-76f3-b39a-de3a4212542b)
  - [Lake Michigan](https://ontology.bommaritollc.com/id/01a0ddfe-da8b-736c-b10c-b5ac4195f147)
- `skos:prefLabel`: Portage Bay

## Elsewhere

- [Wikidata Q49388582](https://www.wikidata.org/wiki/Q49388582) (proposed match (exactMatch))
- [USGS GNIS 635270](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/635270) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.70886&mlon=-87.08041#map=14/45.70886/-87.08041) (45.70886, -87.08041)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.70886,-87.08041)
- [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/Q49388582 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-76e1-7013-833a-fc38044d8437)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c4ce-7558-a83d-b75f7911be34.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c4ce-7558-a83d-b75f7911be34.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c4ce-7558-a83d-b75f7911be34.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c4ce-7558-a83d-b75f7911be34)
Cite as: Portage Bay. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-c4ce-7558-a83d-b75f7911be34
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.