# Grassy Lake

Grassy Lake is a lake in [Plainfield Township](https://ontology.bommaritollc.com/id/01a0ca47-78dd-7328-bd95-36c4e05938d3), [Iosco County](https://ontology.bommaritollc.com/id/01a0ca47-5f6f-7423-ace2-d6fa47089eca), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (6.3 ha), in the [Au Sable River (HUC10 0407000707)](https://ontology.bommaritollc.com/id/01a0de92-1e4c-76a8-8d59-4a9de4f767ce) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Iosco County](https://ontology.bommaritollc.com/id/01a0ca47-5f6f-7423-ace2-d6fa47089eca) › [Plainfield Township](https://ontology.bommaritollc.com/id/01a0ca47-78dd-7328-bd95-36c4e05938d3)

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

Location: 44.50573, -83.77226 (box -83.77449, 44.50472, -83.77016, 44.50701; west, south, east, north)

- `adms:identifier`: [gnis 627228](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910ee288bb2b)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Grassy Lake](https://ontology.bommaritollc.com/id/01a0de2c-cac7-731b-bd49-c769240da427)
- `geo:hasGeometry`:
  - [point of Grassy Lake](https://ontology.bommaritollc.com/id/01a0ddfe-eae6-71fa-bd53-0b033ccbb280)
  - [shape of Grassy Lake](https://ontology.bommaritollc.com/id/01a0de2c-cac7-731b-bd49-c769240da427)
- `geo:hasMetricArea`: 62563.3 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Au Sable River (HUC10 0407000707)](https://ontology.bommaritollc.com/id/01a0de92-1e4c-76a8-8d59-4a9de4f767ce)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910553811f41)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4de4-7445-a66e-fe9f0de0f564)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-180f-74b3-80dc-a94bffb098d0)
- `schema:containedInPlace`:
  - [Iosco County](https://ontology.bommaritollc.com/id/01a0ca47-5f6f-7423-ace2-d6fa47089eca)
  - [Plainfield Township](https://ontology.bommaritollc.com/id/01a0ca47-78dd-7328-bd95-36c4e05938d3)
- `skos:prefLabel`: Grassy Lake

## Elsewhere

- [Wikidata Q33257368](https://www.wikidata.org/wiki/Q33257368) (proposed match (exactMatch))
- [USGS GNIS 627228](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/627228) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.50573&mlon=-83.77226#map=14/44.50573/-83.77226) (44.50573, -83.77226)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.50573,-83.77226)
- [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/Q33257368 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-74aa-718a-9b23-1fdafbed50a1)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27)
Cite as: Grassy Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b69a-703e-8ba8-910639991d27
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.