# Crofton Swamp

Crofton Swamp is a swamp in [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722), [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Boardman River (HUC10 0406010505)](https://ontology.bommaritollc.com/id/01a0de92-1e03-70a0-9c77-d8b3cb3d732a) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a) › [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722)

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

Location: 44.70028, -85.21172 (box -85.21172, 44.70028, -85.21172, 44.70028; west, south, east, north)

- `adms:identifier`: [gnis 624078](https://ontology.bommaritollc.com/id/01a0ddfe-b106-7660-8783-1728ebaa1d1a)
- `dcterms:type`: [swamp](https://ontology.bommaritollc.com/vocab/geo/gnisSwamp)
- `geo:hasDefaultGeometry`: [point of Crofton Swamp](https://ontology.bommaritollc.com/id/01a0ddfe-e573-7297-a5a4-33cfb8b557a0)
- `geo:hasGeometry`: [point of Crofton Swamp](https://ontology.bommaritollc.com/id/01a0ddfe-e573-7297-a5a4-33cfb8b557a0)
- **in watershed** (`bcgeo:inWatershed`): [Boardman River (HUC10 0406010505)](https://ontology.bommaritollc.com/id/01a0de92-1e03-70a0-9c77-d8b3cb3d732a)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8bae6566c892)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-49a7-747b-bbc5-1fc2f11b94d4)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-17b7-774a-a58c-36327c7cc37d)
- `schema:containedInPlace`:
  - [Kalkaska County](https://ontology.bommaritollc.com/id/01a0ca47-5dbc-76a7-9cd6-a573389e3d9a)
  - [Kalkaska Township](https://ontology.bommaritollc.com/id/01a0ca47-75fa-7327-a8f4-066307faa722)
- `skos:prefLabel`: Crofton Swamp

## Elsewhere

- [Wikidata Q33173949](https://www.wikidata.org/wiki/Q33173949) (proposed match (exactMatch))
- [USGS GNIS 624078](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/624078) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=44.70028&mlon=-85.21172#map=14/44.70028/-85.21172) (44.70028, -85.21172)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=44.70028,-85.21172)
- [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/Q33173949 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7451-74ca-9acd-8d8cfc9a13b7)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1)
Cite as: Crofton Swamp. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b105-73ca-b176-8baf804aeee1
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.