# Shamrock Lake

Shamrock Lake is a lake in [Comins Township](https://ontology.bommaritollc.com/id/01a0ca47-6da0-70a0-ab7f-13112271c652), [Oscoda County](https://ontology.bommaritollc.com/id/01a0ca47-5dba-7152-bf1b-07992088cd56), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.0 km²), in the [Upper South Branch Thunder Bay River (HUC10 0407000602)](https://ontology.bommaritollc.com/id/01a0de92-1e31-76f9-b717-19e817378970) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Oscoda County](https://ontology.bommaritollc.com/id/01a0ca47-5dba-7152-bf1b-07992088cd56) › [Comins Township](https://ontology.bommaritollc.com/id/01a0ca47-6da0-70a0-ab7f-13112271c652)

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

Location: 44.74229, -83.93286 (box -83.94012, 44.73530, -83.92613, 44.74921; west, south, east, north)

- `adms:identifier`: [gnis 1621573](https://ontology.bommaritollc.com/id/01a0ddfe-d7fb-71f5-aa17-65d2ae2ff2da)
- `dcterms:type`: [lake](https://ontology.bommaritollc.com/vocab/geo/gnisLake)
- `geo:hasDefaultGeometry`: [shape of Shamrock Lake](https://ontology.bommaritollc.com/id/01a0de2c-de9f-7481-965c-b607c44a56ab)
- `geo:hasGeometry`:
  - [point of Shamrock Lake](https://ontology.bommaritollc.com/id/01a0ddff-15f7-722e-9db9-cdeb163206fd)
  - [shape of Shamrock Lake](https://ontology.bommaritollc.com/id/01a0de2c-de9f-7481-965c-b607c44a56ab)
- `geo:hasMetricArea`: 1030383.8 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Upper South Branch Thunder Bay River (HUC10 0407000602)](https://ontology.bommaritollc.com/id/01a0de92-1e31-76f9-b717-19e817378970)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c5cd007b49)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-6777-747e-8e60-0f133e35a247)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-17eb-71d7-b6bb-031729a70601)
- `schema:containedInPlace`:
  - [Oscoda County](https://ontology.bommaritollc.com/id/01a0ca47-5dba-7152-bf1b-07992088cd56)
  - [Comins Township](https://ontology.bommaritollc.com/id/01a0ca47-6da0-70a0-ab7f-13112271c652)
- `skos:altLabel`:
  - Flat Lake
  - Fox Lake
- `skos:prefLabel`: Shamrock Lake

## Elsewhere

- [Wikidata Q33307654](https://www.wikidata.org/wiki/Q33307654) (proposed match (exactMatch))
- [USGS GNIS 1621573](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1621573) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.74229&mlon=-83.93286#map=14/44.74229/-83.93286) (44.74229, -83.93286)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.74229,-83.93286)
- [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/Q33307654 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7920-734a-80ff-986d6b2f9635)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f)
Cite as: Shamrock Lake. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-d7fa-704b-8854-60c6b8558f4f
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.