# Base Line Lake

Base Line Lake is a lake in [Trowbridge Township](https://ontology.bommaritollc.com/id/01a0ca47-687d-73a0-8985-ee6a2ac04de2), [Allegan County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-2036bd56afa0), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (85.5 ha), in the [Kalamazoo River (HUC10 0405000309)](https://ontology.bommaritollc.com/id/01a0de92-1d5c-70b4-ad35-069cd39a15e7) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Allegan County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-2036bd56afa0) › [Trowbridge Township](https://ontology.bommaritollc.com/id/01a0ca47-687d-73a0-8985-ee6a2ac04de2)

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

Location: 42.42492, -85.85504 (box -85.86557, 42.42045, -85.84440, 42.43100; west, south, east, north)

- `adms:identifier`: [gnis 620672](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d1b74c7889)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Base Line Lake](https://ontology.bommaritollc.com/id/01a0de2c-c3ec-7193-b49b-37b502edd4bb)
- `geo:hasGeometry`:
  - [point of Base Line Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e20b-75d7-8982-a8b710c2e5c0)
  - [shape of Base Line Lake](https://ontology.bommaritollc.com/id/01a0de2c-c3ec-7193-b49b-37b502edd4bb)
- `geo:hasMetricArea`: 854560.8 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Kalamazoo River (HUC10 0405000309)](https://ontology.bommaritollc.com/id/01a0de92-1d5c-70b4-ad35-069cd39a15e7)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f963e21d17f)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-44e1-71d2-9e4c-aeaf671077c0)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-16e1-7110-8258-ad752e4e7c21)
- `schema:containedInPlace`:
  - [Allegan County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-2036bd56afa0)
  - [Trowbridge Township](https://ontology.bommaritollc.com/id/01a0ca47-687d-73a0-8985-ee6a2ac04de2)
- `skos:prefLabel`: Base Line Lake

## Elsewhere

- [Wikidata Q33228983](https://www.wikidata.org/wiki/Q33228983) (proposed match (exactMatch))
- [USGS GNIS 620672](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/620672) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.42492&mlon=-85.85504#map=14/42.42492/-85.85504) (42.42492, -85.85504)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.42492,-85.85504)
- [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/Q33228983 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-735f-74e6-b5fb-ce4e4cf08137)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d)
Cite as: Base Line Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-aab8-7700-a03c-7f97284e470d
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.