# Blue Lake

Blue Lake is a lake in [Tilden Township](https://ontology.bommaritollc.com/id/01a0ca47-6880-763b-99e4-2714200fb8a7), [Marquette County](https://ontology.bommaritollc.com/id/01a0ca47-5d65-70a2-917a-e4b27fa24d91), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (10.6 ha), in the [Middle Branch Escanaba River (HUC10 0403011001)](https://ontology.bommaritollc.com/id/01a0de92-1cd1-7397-9c12-165549f7c5ee) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Marquette County](https://ontology.bommaritollc.com/id/01a0ca47-5d65-70a2-917a-e4b27fa24d91) › [Tilden Township](https://ontology.bommaritollc.com/id/01a0ca47-6880-763b-99e4-2714200fb8a7)

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

Location: 46.42973, -87.69028 (box -87.69333, 46.42830, -87.68706, 46.43146; west, south, east, north)

- `adms:identifier`: [gnis 621639](https://ontology.bommaritollc.com/id/01a0ddfe-aca5-7385-93f1-2e54740009d6)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Blue Lake](https://ontology.bommaritollc.com/id/01a0de2c-c520-745c-838b-95e27bb0a65e)
- `geo:hasGeometry`:
  - [point of Blue Lake](https://ontology.bommaritollc.com/id/01a0ddfe-e316-73c2-82f1-ab9b8e2c96fa)
  - [shape of Blue Lake](https://ontology.bommaritollc.com/id/01a0de2c-c520-745c-838b-95e27bb0a65e)
- `geo:hasMetricArea`: 105525.3 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Middle Branch Escanaba River (HUC10 0403011001)](https://ontology.bommaritollc.com/id/01a0de92-1cd1-7397-9c12-165549f7c5ee)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-344215e359a0)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-466a-7528-8ad2-b1290261c6c3)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1634-71e0-9ea4-3541fd140a44)
- `schema:containedInPlace`:
  - [Marquette County](https://ontology.bommaritollc.com/id/01a0ca47-5d65-70a2-917a-e4b27fa24d91)
  - [Tilden Township](https://ontology.bommaritollc.com/id/01a0ca47-6880-763b-99e4-2714200fb8a7)
- `skos:prefLabel`: Blue Lake

## Elsewhere

- [Wikidata Q33232980](https://www.wikidata.org/wiki/Q33232980) (proposed match (exactMatch))
- [USGS GNIS 621639](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/621639) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.42973&mlon=-87.69028#map=14/46.42973/-87.69028) (46.42973, -87.69028)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.42973,-87.69028)
- [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/Q33232980 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-738b-7719-b1b6-bb1c7060bb43)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2)
Cite as: Blue Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-aca4-7360-b392-3443d3b8acc2
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.