# Seven Lakes

Seven Lakes is a reservoir in [Holly Township](https://ontology.bommaritollc.com/id/01a0ca47-726e-70e4-b728-5db3f262314f), [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (67.8 ha), in the [Swartz Creek (HUC10 0408020403)](https://ontology.bommaritollc.com/id/01a0de92-1eaa-7124-a51a-9c8bae628a65) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460) › [Holly Township](https://ontology.bommaritollc.com/id/01a0ca47-726e-70e4-b728-5db3f262314f)

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

Location: 42.81181, -83.67575 (box -83.68043, 42.80491, -83.67019, 42.81930; west, south, east, north)

- `adms:identifier`: [gnis 637591](https://ontology.bommaritollc.com/id/01a0ddfe-c825-7344-9170-c767d86edcf2)
- `dcterms:type`: [reservoir](https://ontology.bommaritollc.com/vocab/geo/gnisReservoir)
- `geo:hasDefaultGeometry`: [shape of Seven Lakes](https://ontology.bommaritollc.com/id/01a0de2c-d4dc-728a-a9dd-1368c7c36f7b)
- `geo:hasGeometry`:
  - [point of Seven Lakes](https://ontology.bommaritollc.com/id/01a0ddff-0133-7412-a7e7-9257f3b9f121)
  - [shape of Seven Lakes](https://ontology.bommaritollc.com/id/01a0de2c-d4dc-728a-a9dd-1368c7c36f7b)
- `geo:hasMetricArea`: 677939.5 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Swartz Creek (HUC10 0408020403)](https://ontology.bommaritollc.com/id/01a0de92-1eaa-7124-a51a-9c8bae628a65)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e0188c3f5e)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5b48-774a-b2e5-66105cccd1ca)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1880-719f-b40f-35e51e64469d)
- `schema:containedInPlace`:
  - [Oakland County](https://ontology.bommaritollc.com/id/01a0ca47-5d60-74ef-9e31-2c21350a4460)
  - [Holly Township](https://ontology.bommaritollc.com/id/01a0ca47-726e-70e4-b728-5db3f262314f)
- `skos:prefLabel`: Seven Lakes

## Elsewhere

- [USGS GNIS 637591](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/637591) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.81181&mlon=-83.67575#map=14/42.81181/-83.67575) (42.81181, -83.67575)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.81181,-83.67575)
- [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)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6)
Cite as: Seven Lakes. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-c824-74f3-972b-b2e145e1a5d6
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.