# O'Brien Lake

O'Brien Lake is a lake in [Mitchell Township](https://ontology.bommaritollc.com/id/01a0ca47-777b-738a-b520-9693816c4969), [Alcona County](https://ontology.bommaritollc.com/id/01a0ca47-59b8-7700-8c5c-af7c3d92657c), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (4.4 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-d6c6-7090-bb48-21974216991a>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Alcona County](https://ontology.bommaritollc.com/id/01a0ca47-59b8-7700-8c5c-af7c3d92657c) › [Mitchell Township](https://ontology.bommaritollc.com/id/01a0ca47-777b-738a-b520-9693816c4969)

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

Location: 44.64128, -83.88265 (box -83.88470, 44.64050, -83.88065, 44.64201; west, south, east, north)

- `adms:identifier`: [gnis 1621077](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-219f74b1f258)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6)
- `geo:hasGeometry`:
  - [point of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0ddff-13ba-717b-9f6b-fccee4c80e57)
  - [shape of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0de2c-ddbb-7195-a576-9b60225ab5f6)
- `geo:hasMetricArea`: 44185.8 (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-d6c6-7090-bb48-2196f78566f4)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-66c3-7132-97e0-1c2f51029f92)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-180f-74b3-80dc-a94bffb098d0)
- `schema:containedInPlace`:
  - [Alcona County](https://ontology.bommaritollc.com/id/01a0ca47-59b8-7700-8c5c-af7c3d92657c)
  - [Mitchell Township](https://ontology.bommaritollc.com/id/01a0ca47-777b-738a-b520-9693816c4969)
- `skos:prefLabel`: O'Brien Lake

## Elsewhere

- [Wikidata Q33295611](https://www.wikidata.org/wiki/Q33295611) (proposed match (exactMatch))
- [USGS GNIS 1621077](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1621077) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.64128&mlon=-83.88265#map=14/44.64128/-83.88265) (44.64128, -83.88265)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.64128,-83.88265)
- [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/Q33295611 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7912-74c3-babe-12ca9020a6c4)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a)
Cite as: O'Brien Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-d6c6-7090-bb48-21974216991a
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.