# Sylvan Lake

Sylvan Lake is a lake in [Newaygo County](https://ontology.bommaritollc.com/id/01a0ca47-594f-76a5-9e3b-ed2eb9298a15), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (41.1 ha), in the [Brooks Creek-Muskegon River (HUC10 0406010209)](https://ontology.bommaritollc.com/id/01a0de92-1dd6-70d4-9932-a44013591e10) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Newaygo County](https://ontology.bommaritollc.com/id/01a0ca47-594f-76a5-9e3b-ed2eb9298a15)

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

Location: 43.46623, -85.78393 (box -85.78985, 43.46250, -85.77903, 43.46973; west, south, east, north)

- `adms:identifier`: [gnis 1621850](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b6571a876a1)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Sylvan Lake](https://ontology.bommaritollc.com/id/01a0de2c-df02-74d2-b016-a140fb01d631)
- `geo:hasGeometry`:
  - [point of Sylvan Lake](https://ontology.bommaritollc.com/id/01a0ddff-164a-710e-bd89-fa152a6f7d6c)
  - [shape of Sylvan Lake](https://ontology.bommaritollc.com/id/01a0de2c-df02-74d2-b016-a140fb01d631)
- `geo:hasMetricArea`: 410782.3 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Brooks Creek-Muskegon River (HUC10 0406010209)](https://ontology.bommaritollc.com/id/01a0de92-1dd6-70d4-9932-a44013591e10)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5cb0b5072d)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-683c-750c-b58c-51c748387b44)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-177b-76ab-b621-75c1be928304)
- `schema:containedInPlace`:
  - [Newaygo County](https://ontology.bommaritollc.com/id/01a0ca47-594f-76a5-9e3b-ed2eb9298a15)
  - [Brooks Township](https://ontology.bommaritollc.com/id/01a0ca47-5fcf-716a-9eb3-3e415157b0ad)
  - [Everett Township](https://ontology.bommaritollc.com/id/01a0ca47-6f30-705f-be2b-566e124192b5)
- `skos:prefLabel`: Sylvan Lake

## Elsewhere

- [Wikidata Q33314408](https://www.wikidata.org/wiki/Q33314408) (proposed match (exactMatch))
- [USGS GNIS 1621850](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1621850) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.46623&mlon=-85.78393#map=14/43.46623/-85.78393) (43.46623, -85.78393)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.46623,-85.78393)
- [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/Q33314408 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-792b-73be-9698-0288e9003471)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767)
Cite as: Sylvan Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-d8d3-7734-bb1b-0b5da922e767
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.