# Riley Lake

Riley Lake is a lake in [Grass Lake Charter Township](https://ontology.bommaritollc.com/id/01a0ca47-70bd-7229-83e4-e48d07f17271), [Jackson County](https://ontology.bommaritollc.com/id/01a0ca47-5d2e-7158-b23f-ecd175f58db5), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (4.9 ha), in the [Headwaters Grand River (HUC10 0405000401)](https://ontology.bommaritollc.com/id/01a0de92-1d62-735a-b562-311334647fab) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Jackson County](https://ontology.bommaritollc.com/id/01a0ca47-5d2e-7158-b23f-ecd175f58db5) › [Grass Lake Charter Township](https://ontology.bommaritollc.com/id/01a0ca47-70bd-7229-83e4-e48d07f17271)

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

Location: 42.27374, -84.18994 (box -84.19147, 42.27240, -84.18845, 42.27485; west, south, east, north)

- `adms:identifier`: [gnis 635937](https://ontology.bommaritollc.com/id/01a0ddfe-c656-73a9-ac74-33f870d76b18)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Riley Lake](https://ontology.bommaritollc.com/id/01a0de2c-d3ef-7212-a4bd-1cc44e6dfee2)
- `geo:hasGeometry`:
  - [point of Riley Lake](https://ontology.bommaritollc.com/id/01a0ddff-0055-7686-be60-d6d02a151feb)
  - [shape of Riley Lake](https://ontology.bommaritollc.com/id/01a0de2c-d3ef-7212-a4bd-1cc44e6dfee2)
- `geo:hasMetricArea`: 48510.5 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Headwaters Grand River (HUC10 0405000401)](https://ontology.bommaritollc.com/id/01a0de92-1d62-735a-b562-311334647fab)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289a38baa464)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-59c7-77cb-ad31-448ab139bd41)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-16e9-75d3-9f0a-8154e7542c01)
- `schema:containedInPlace`:
  - [Jackson County](https://ontology.bommaritollc.com/id/01a0ca47-5d2e-7158-b23f-ecd175f58db5)
  - [Grass Lake Charter Township](https://ontology.bommaritollc.com/id/01a0ca47-70bd-7229-83e4-e48d07f17271)
- `skos:prefLabel`: Riley Lake

## Elsewhere

- [Wikidata Q33302691](https://www.wikidata.org/wiki/Q33302691) (proposed match (exactMatch))
- [USGS GNIS 635937](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/635937) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.27374&mlon=-84.18994#map=14/42.27374/-84.18994) (42.27374, -84.18994)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.27374,-84.18994)
- [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/Q33302691 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-76f1-710c-a3d8-7b97946b181c)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30)
Cite as: Riley Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-c655-7253-9d04-289b53adca30
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.