# Darby Lake

Darby Lake is a lake in [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722), [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (2.3 ha), in the [Boardman River (HUC10 0406010505)](https://ontology.bommaritollc.com/id/01a0de92-1e03-70a0-9c77-d8b3cb3d732a) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a) › [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722)

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

Location: 44.72331, -85.31379 (box -85.31549, 44.72252, -85.31228, 44.72399; west, south, east, north)

- `adms:identifier`: [gnis 624310](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-93093ac6e9ae)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Darby Lake](https://ontology.bommaritollc.com/id/01a0de2c-c7d4-76af-a787-944369a23f6e)
- `geo:hasGeometry`:
  - [point of Darby Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e5a4-749e-955f-f076548ba09a)
  - [shape of Darby Lake](https://ontology.bommaritollc.com/id/01a0de2c-c7d4-76af-a787-944369a23f6e)
- `geo:hasMetricArea`: 23035.0 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Boardman River (HUC10 0406010505)](https://ontology.bommaritollc.com/id/01a0de92-1e03-70a0-9c77-d8b3cb3d732a)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9300843e970f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4a37-7465-b293-6e5eddefc585)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-17b7-774a-a58c-36327c7cc37d)
- `schema:containedInPlace`:
  - [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a)
  - [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722)
- `skos:prefLabel`: Darby Lake

## Elsewhere

- [Wikidata Q33243856](https://www.wikidata.org/wiki/Q33243856) (proposed match (exactMatch))
- [USGS GNIS 624310](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/624310) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.72331&mlon=-85.31379#map=14/44.72331/-85.31379) (44.72331, -85.31379)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.72331,-85.31379)
- [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/Q33243856 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7458-7491-9611-bb705442db4f)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe)
Cite as: Darby Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b1a9-7610-8af9-9301883280fe
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.