# Slack Drain

Slack Drain is a canal in [Sheridan Township](https://ontology.bommaritollc.com/id/01a0ca47-7a42-74ff-8965-d9890d98ef5e), [Huron County](https://ontology.bommaritollc.com/id/01a0ca47-5950-7191-8721-77fb1d5c81c2), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (2.7 km long), in the [Pinnebog River (HUC10 0408010303)](https://ontology.bommaritollc.com/id/01a0de92-1e6e-7354-b0f5-7369824e0ffa) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Huron County](https://ontology.bommaritollc.com/id/01a0ca47-5950-7191-8721-77fb1d5c81c2) › [Sheridan Township](https://ontology.bommaritollc.com/id/01a0ca47-7a42-74ff-8965-d9890d98ef5e)

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

Location: 43.72613, -83.01383 (box -83.02246, 43.71626, -83.00591, 43.73330; west, south, east, north)

- `adms:identifier`: [gnis 638080](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4329c870e882)
- `dcterms:type`: [canal](https://ontology.bommaritollc.com/vocab/geo/gnisCanal)
- `geo:hasDefaultGeometry`: [shape of Slack Drain](https://ontology.bommaritollc.com/id/01a0de2c-d5a7-76a7-a3b8-9da1992fdef1)
- `geo:hasGeometry`:
  - [point of Slack Drain](https://ontology.bommaritollc.com/id/01a0ddff-0358-746c-aa6d-c4e9ee25a4a4)
  - [shape of Slack Drain](https://ontology.bommaritollc.com/id/01a0de2c-d5a7-76a7-a3b8-9da1992fdef1)
- `geo:hasMetricLength`: 2697.2 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Pinnebog River (HUC10 0408010303)](https://ontology.bommaritollc.com/id/01a0de92-1e6e-7354-b0f5-7369824e0ffa)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-431fe3ccb67e)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5c40-729c-9daa-dcd1095a805c)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1835-72ba-96f1-d3a4c4242b13)
- `schema:containedInPlace`:
  - [Huron County](https://ontology.bommaritollc.com/id/01a0ca47-5950-7191-8721-77fb1d5c81c2)
  - [Sheridan Township](https://ontology.bommaritollc.com/id/01a0ca47-7a42-74ff-8965-d9890d98ef5e)
- `skos:prefLabel`: Slack Drain

## Elsewhere

- [Wikidata Q33214383](https://www.wikidata.org/wiki/Q33214383) (proposed match (exactMatch))
- [USGS GNIS 638080](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/638080) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.72613&mlon=-83.01383#map=14/43.72613/-83.01383) (43.72613, -83.01383)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.72613,-83.01383)
- [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/Q33214383 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-7718-713f-99f1-698af85490ce)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d)
Cite as: Slack Drain. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-c93a-705c-9bc3-4320ae48d40d
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.