# Hornkohl Swamp

Hornkohl Swamp is a swamp in [Grant Township](https://ontology.bommaritollc.com/id/01a0ca47-70b6-7620-8fe0-e46a9251abd6), [Mason County](https://ontology.bommaritollc.com/id/01a0ca47-5871-7100-9de8-b80b6da51326), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Stony Creek-Frontal Lake Michigan (HUC10 0406010110)](https://ontology.bommaritollc.com/id/01a0de92-1dbd-715b-af50-38487901c330) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Mason County](https://ontology.bommaritollc.com/id/01a0ca47-5871-7100-9de8-b80b6da51326) › [Grant Township](https://ontology.bommaritollc.com/id/01a0ca47-70b6-7620-8fe0-e46a9251abd6)

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

Location: 44.16976, -86.29273 (box -86.29273, 44.16976, -86.29273, 44.16976; west, south, east, north)

- `adms:identifier`: [gnis 1620243](https://ontology.bommaritollc.com/id/01a0ddfe-d4c7-7555-afcd-8df2cc77766f)
- `dcterms:type`: [swamp](https://ontology.bommaritollc.com/vocab/geo/gnisSwamp)
- `geo:hasDefaultGeometry`: [point of Hornkohl Swamp](https://ontology.bommaritollc.com/id/01a0ddff-111b-728b-a78e-309f51fb0e61)
- `geo:hasGeometry`: [point of Hornkohl Swamp](https://ontology.bommaritollc.com/id/01a0ddff-111b-728b-a78e-309f51fb0e61)
- **in watershed** (`bcgeo:inWatershed`): [Stony Creek-Frontal Lake Michigan (HUC10 0406010110)](https://ontology.bommaritollc.com/id/01a0de92-1dbd-715b-af50-38487901c330)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b3f515e157)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-6514-7547-8e14-5347db646e2d)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-175c-7160-9089-9dfb64633d9a)
- `schema:containedInPlace`:
  - [Mason County](https://ontology.bommaritollc.com/id/01a0ca47-5871-7100-9de8-b80b6da51326)
  - [Grant Township](https://ontology.bommaritollc.com/id/01a0ca47-70b6-7620-8fe0-e46a9251abd6)
- `skos:altLabel`:
  - Horncold Swamp
  - Hornkohl Marsh
- `skos:prefLabel`: Hornkohl Swamp

## Elsewhere

- [Wikidata Q33175407](https://www.wikidata.org/wiki/Q33175407) (proposed match (exactMatch))
- [USGS GNIS 1620243](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1620243) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.16976&mlon=-86.29273#map=14/44.16976/-86.29273) (44.16976, -86.29273)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.16976,-86.29273)
- [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/Q33175407 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-78ec-754e-8f4a-14629f88f51a)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e)
Cite as: Hornkohl Swamp. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-d4c6-716f-b071-b4b46986502e
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.