# Sylvan Lake (historical)

Sylvan Lake (historical) is a lake in [Nottawa Township](https://ontology.bommaritollc.com/id/01a0ca47-7819-75fa-99ec-aa6dfde0246b), [St. Joseph County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-9826dab2a9ac), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Prairie River (HUC10 0405000107)](https://ontology.bommaritollc.com/id/01a0de92-1d19-737e-a5a5-85fe1135d3f1) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [St. Joseph County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-9826dab2a9ac) › [Nottawa Township](https://ontology.bommaritollc.com/id/01a0ca47-7819-75fa-99ec-aa6dfde0246b)

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

Location: 41.90610, -85.45365 (box -85.45365, 41.90610, -85.45365, 41.90610; west, south, east, north)

- `adms:identifier`: [gnis 1624976](https://ontology.bommaritollc.com/id/01a0ddfe-dc6a-777b-8cd4-9cd65b0148ac)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [point of Sylvan Lake (historical)](https://ontology.bommaritollc.com/id/01a0ddff-1957-74c3-904d-d1f8d84c339d)
- `geo:hasGeometry`: [point of Sylvan Lake (historical)](https://ontology.bommaritollc.com/id/01a0ddff-1957-74c3-904d-d1f8d84c339d)
- **in watershed** (`bcgeo:inWatershed`): [Prairie River (HUC10 0405000107)](https://ontology.bommaritollc.com/id/01a0de92-1d19-737e-a5a5-85fe1135d3f1)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-3063fa921376)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-6ad1-77a7-ac7a-89badd9a2ee7)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-168e-773c-a6d3-ed8e8d278df2)
- `schema:containedInPlace`:
  - [St. Joseph County](https://ontology.bommaritollc.com/id/01a0ca47-5a46-7564-a1ca-9826dab2a9ac)
  - [Nottawa Township](https://ontology.bommaritollc.com/id/01a0ca47-7819-75fa-99ec-aa6dfde0246b)
- `skos:altLabel`: Skunk Lake
- `skos:prefLabel`: Sylvan Lake (historical)

## Elsewhere

- [Wikidata Q88278949](https://www.wikidata.org/wiki/Q88278949) (proposed match (exactMatch))
- [USGS GNIS 1624976](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1624976) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.90610&mlon=-85.45365#map=14/41.90610/-85.45365) (41.90610, -85.45365)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.90610,-85.45365)
- [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/Q88278949 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-79e9-7690-9460-77ea9a96f2bf)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e)
Cite as: Sylvan Lake (historical). bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-dc69-72b1-8e53-306409c8054e
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.