# Castle Rock

Castle Rock is a summit in [St. Ignace Township](https://ontology.bommaritollc.com/id/01a0ca47-60ef-7786-8b2e-0f5658863dbf), [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [McKay Creek-Frontal Lake Huron (HUC10 0420000103)](https://ontology.bommaritollc.com/id/01a0de92-1f34-7642-8e25-2a60d6750e5c) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3e5ad39d1b>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80) › [St. Ignace Township](https://ontology.bommaritollc.com/id/01a0ca47-60ef-7786-8b2e-0f5658863dbf)

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

Location: 45.91052, -84.74310 (box -84.74310, 45.91052, -84.74310, 45.91052; west, south, east, north)

- `adms:identifier`: [gnis 1619452](https://ontology.bommaritollc.com/id/01a0ddfe-d2a1-74b5-a3d1-7278088a3a24)
- `dcterms:type`: [summit](https://ontology.bommaritollc.com/vocab/geo/gnisSummit)
- `geo:hasDefaultGeometry`: [point of Castle Rock](https://ontology.bommaritollc.com/id/01a0ddff-0e83-7540-82df-3daa44e17870)
- `geo:hasGeometry`: [point of Castle Rock](https://ontology.bommaritollc.com/id/01a0ddff-0e83-7540-82df-3daa44e17870)
- **in watershed** (`bcgeo:inWatershed`): [McKay Creek-Frontal Lake Huron (HUC10 0420000103)](https://ontology.bommaritollc.com/id/01a0de92-1f34-7642-8e25-2a60d6750e5c)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3d494430b1)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-637f-77d3-8019-3a70a0ca2e7b)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1962-713a-abff-16aa8e5b0119)
- `schema:containedInPlace`:
  - [Mackinac County](https://ontology.bommaritollc.com/id/01a0ca47-5c59-72ef-9b47-f808d9d32f80)
  - [St. Ignace Township](https://ontology.bommaritollc.com/id/01a0ca47-60ef-7786-8b2e-0f5658863dbf)
- `skos:prefLabel`: Castle Rock

## Elsewhere

- [USGS GNIS 1619452](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1619452) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=45.91052&mlon=-84.74310#map=14/45.91052/-84.74310) (45.91052, -84.74310)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=45.91052,-84.74310)
- [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-d2a0-7256-a211-5e3e5ad39d1b.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3e5ad39d1b.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3e5ad39d1b.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3e5ad39d1b)
Cite as: Castle Rock. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-d2a0-7256-a211-5e3e5ad39d1b
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.