# O'Brien Lake

O'Brien Lake is a lake in [Berrien Township](https://ontology.bommaritollc.com/id/01a0ca47-686b-77b1-b3e5-71d5a6bb42a6), [Berrien County](https://ontology.bommaritollc.com/id/01a0ca47-5a47-74a2-ab93-63aff717b05b), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (7.1 ha), in the [Dowagiac River (HUC10 0405000123)](https://ontology.bommaritollc.com/id/01a0de92-1d2f-7030-b921-f4d806a46a24) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Berrien County](https://ontology.bommaritollc.com/id/01a0ca47-5a47-74a2-ab93-63aff717b05b) › [Berrien Township](https://ontology.bommaritollc.com/id/01a0ca47-686b-77b1-b3e5-71d5a6bb42a6)

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

Location: 41.97435, -86.25167 (box -86.25325, 41.97261, -86.25021, 41.97601; west, south, east, north)

- `adms:identifier`: [gnis 633793](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-0387045ead98)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0de2c-d1d1-74ba-946e-bd8382cc07bd)
- `geo:hasGeometry`:
  - [point of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0ddfe-fb15-73cd-b2c9-df50ddaf8d00)
  - [shape of O'Brien Lake](https://ontology.bommaritollc.com/id/01a0de2c-d1d1-74ba-946e-bd8382cc07bd)
- `geo:hasMetricArea`: 70896.1 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Dowagiac River (HUC10 0405000123)](https://ontology.bommaritollc.com/id/01a0de92-1d2f-7030-b921-f4d806a46a24)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037db2bf29c2)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-56f7-70e8-a6b1-9ab8be2a7e86)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-16aa-74ea-af46-9d1b3591b1e4)
- `schema:containedInPlace`:
  - [Berrien County](https://ontology.bommaritollc.com/id/01a0ca47-5a47-74a2-ab93-63aff717b05b)
  - [Berrien Township](https://ontology.bommaritollc.com/id/01a0ca47-686b-77b1-b3e5-71d5a6bb42a6)
- `skos:prefLabel`: O'Brien Lake

## Elsewhere

- [Wikidata Q88276226](https://www.wikidata.org/wiki/Q88276226) (proposed match (exactMatch))
- [USGS GNIS 633793](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/633793) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=41.97435&mlon=-86.25167#map=14/41.97435/-86.25167) (41.97435, -86.25167)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=41.97435,-86.25167)
- [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/Q88276226 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-76b5-7707-8a69-be1ad32844a6)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680)
Cite as: O'Brien Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-c251-7750-bc46-037e1691a680
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.