# Base Line Lake

Base Line Lake is a lake in [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.0 km²), in the [Portage River-Huron River (HUC10 0410001303)](https://ontology.bommaritollc.com/id/01a0de92-1f20-7237-a331-eaea07cbf3b1) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa)

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

Location: 42.42476, -83.89433 (box -83.90311, 42.42021, -83.88566, 42.42997; west, south, east, north)

- `adms:identifier`: [gnis 620673](https://ontology.bommaritollc.com/id/01a0ddfe-aaba-72fa-85f4-733e4f633e3e)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Base Line Lake](https://ontology.bommaritollc.com/id/01a0de2c-c3ed-7290-904a-a1ff55323b76)
- `geo:hasGeometry`:
  - [point of Base Line Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e20c-70d9-b533-a32f2713f25f)
  - [shape of Base Line Lake](https://ontology.bommaritollc.com/id/01a0de2c-c3ed-7290-904a-a1ff55323b76)
- `geo:hasMetricArea`: 1021496.5 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Portage River-Huron River (HUC10 0410001303)](https://ontology.bommaritollc.com/id/01a0de92-1f20-7237-a331-eaea07cbf3b1)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d2394ec68c)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-44e1-71d2-9e4c-aeb6f1a1c8e4)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1916-77d8-b052-82d45c973730)
- `schema:containedInPlace`:
  - [Washtenaw County](https://ontology.bommaritollc.com/id/01a0ca47-5a16-75b9-a286-85a89060c472)
  - [Livingston County](https://ontology.bommaritollc.com/id/01a0ca47-5dbe-77e8-a023-5ae31fec89b3)
  - [Hamburg Township](https://ontology.bommaritollc.com/id/01a0ca47-7134-7726-b164-2e920353179b)
  - [Webster Township](https://ontology.bommaritollc.com/id/01a0ca47-7c24-721c-81c6-bd74b38fdb92)
- `skos:prefLabel`: Base Line Lake

## Elsewhere

- [Wikidata Q33228990](https://www.wikidata.org/wiki/Q33228990) (proposed match (exactMatch))
- [USGS GNIS 620673](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/620673) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.42476&mlon=-83.89433#map=14/42.42476/-83.89433) (42.42476, -83.89433)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.42476,-83.89433)
- [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/Q33228990 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7360-72f1-9145-e4815bfa26b0)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a)
Cite as: Base Line Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-aab9-76c3-8ed7-d3d38ce6c61a
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.