# Swan Marsh

Swan Marsh is a lake in [Newton Township](https://ontology.bommaritollc.com/id/01a0ca47-7cca-725a-b34e-e1134b5be9f2), [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (11.3 ha), in the [Lower Millecoquins River-Frontal Lake Michigan (HUC10 0403011402)](https://ontology.bommaritollc.com/id/01a0de92-1cfd-7736-99ff-a6462fb0aa95) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80) › [Newton Township](https://ontology.bommaritollc.com/id/01a0ca47-7cca-725a-b34e-e1134b5be9f2)

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

Location: 45.99394, -85.81296 (box -85.81704, 45.99242, -85.80844, 45.99531; west, south, east, north)

- `adms:identifier`: [gnis 1614469](https://ontology.bommaritollc.com/id/01a0ddfe-cb9d-709c-969d-0de40f0cbaf0)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Swan Marsh](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3)
- `geo:hasGeometry`:
  - [point of Swan Marsh](https://ontology.bommaritollc.com/id/01a0ddff-061e-753c-b2e7-978949e88520)
  - [shape of Swan Marsh](https://ontology.bommaritollc.com/id/01a0de2c-d708-7001-81e3-7334c2015cd3)
- `geo:hasMetricArea`: 112764.0 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Lower Millecoquins River-Frontal Lake Michigan (HUC10 0403011402)](https://ontology.bommaritollc.com/id/01a0de92-1cfd-7736-99ff-a6462fb0aa95)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b846d619e3)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5df0-73d0-8083-7b60581894c9)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-166b-7061-ab34-12771ab0ce25)
- `schema:containedInPlace`:
  - [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80)
  - [Newton Township](https://ontology.bommaritollc.com/id/01a0ca47-7cca-725a-b34e-e1134b5be9f2)
- `skos:prefLabel`: Swan Marsh

## Elsewhere

- [Wikidata Q33314109](https://www.wikidata.org/wiki/Q33314109) (proposed match (exactMatch))
- [USGS GNIS 1614469](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1614469) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.99394&mlon=-85.81296#map=14/45.99394/-85.81296) (45.99394, -85.81296)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.99394,-85.81296)
- [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/Q33314109 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-77cd-773b-bed8-6ba5b647bd1f)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283)
Cite as: Swan Marsh. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-cb9c-77ba-8626-b5b9f0cdd283
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.