# Grass Lake

Grass Lake is a lake in [Mayfield Township](https://ontology.bommaritollc.com/id/01a0ca47-7745-7412-8006-6319d121dc18), [Lapeer County](https://ontology.bommaritollc.com/id/01a0ca47-5a07-7411-967f-81e8eda85369), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.9 ha), in the [South Branch Flint River (HUC10 0408020401)](https://ontology.bommaritollc.com/id/01a0de92-1ea6-778a-aad6-840c06092a7a) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Lapeer County](https://ontology.bommaritollc.com/id/01a0ca47-5a07-7411-967f-81e8eda85369) › [Mayfield Township](https://ontology.bommaritollc.com/id/01a0ca47-7745-7412-8006-6319d121dc18)

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

Location: 43.12281, -83.26293 (box -83.26408, 43.12211, -83.26196, 43.12385; west, south, east, north)

- `adms:identifier`: [gnis 627188](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16ff83c126a4)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Grass Lake](https://ontology.bommaritollc.com/id/01a0de2c-cabc-7174-81f3-99e17b9dd12a)
- `geo:hasGeometry`:
  - [point of Grass Lake](https://ontology.bommaritollc.com/id/01a0ddfe-ead9-72e4-b21b-0e1a2946f8c2)
  - [shape of Grass Lake](https://ontology.bommaritollc.com/id/01a0de2c-cabc-7174-81f3-99e17b9dd12a)
- `geo:hasMetricArea`: 18588.8 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [South Branch Flint River (HUC10 0408020401)](https://ontology.bommaritollc.com/id/01a0de92-1ea6-778a-aad6-840c06092a7a)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f65f11b415)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4dd5-736a-8d75-1cd444b0beeb)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-187c-7163-862e-2b73a1f553e7)
- `schema:containedInPlace`:
  - [Lapeer County](https://ontology.bommaritollc.com/id/01a0ca47-5a07-7411-967f-81e8eda85369)
  - [Mayfield Township](https://ontology.bommaritollc.com/id/01a0ca47-7745-7412-8006-6319d121dc18)
- `skos:prefLabel`: Grass Lake

## Elsewhere

- [Wikidata Q88273166](https://www.wikidata.org/wiki/Q88273166) (proposed match (exactMatch))
- [USGS GNIS 627188](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/627188) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.12281&mlon=-83.26293#map=14/43.12281/-83.26293) (43.12281, -83.26293)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.12281,-83.26293)
- [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/Q88273166 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-74a8-71e9-903d-ff81460e1f72)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f)
Cite as: Grass Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b681-7090-870d-16f7a37bf33f
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.