# Coffman Drain

Coffman Drain is a canal in [Riley Township](https://ontology.bommaritollc.com/id/01a0ca47-7985-70d1-91ac-54d887189e6f), [Clinton County](https://ontology.bommaritollc.com/id/01a0ca47-5954-7486-8da7-cf1fa640c49a), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (2.6 km long), in the [Stony Creek (HUC10 0405000504)](https://ontology.bommaritollc.com/id/01a0de92-1d7d-73f6-8773-95585928b9e4) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Clinton County](https://ontology.bommaritollc.com/id/01a0ca47-5954-7486-8da7-cf1fa640c49a) › [Riley Township](https://ontology.bommaritollc.com/id/01a0ca47-7985-70d1-91ac-54d887189e6f)

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

Location: 42.89892, -84.62137 (box -84.63047, 42.89115, -84.61579, 42.90743; west, south, east, north)

- `adms:identifier`: [gnis 623540](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-621324ad538a)
- `dcterms:type`: [canal](https://ontology.bommaritollc.com/vocab/geo/gnisCanal)
- `geo:hasDefaultGeometry`: [shape of Coffman Drain](https://ontology.bommaritollc.com/id/01a0de2c-c6df-70f6-b19b-c78277a32799)
- `geo:hasGeometry`:
  - [point of Coffman Drain](https://ontology.bommaritollc.com/id/01a0ddfe-e4f8-7223-8b46-5bf382f64d66)
  - [shape of Coffman Drain](https://ontology.bommaritollc.com/id/01a0de2c-c6df-70f6-b19b-c78277a32799)
- `geo:hasMetricLength`: 2640.6 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Stony Creek (HUC10 0405000504)](https://ontology.bommaritollc.com/id/01a0de92-1d7d-73f6-8773-95585928b9e4)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620946594385)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-490b-7376-8b0a-0666d047d974)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-1711-7178-8c17-b8648dccd088)
- `schema:containedInPlace`:
  - [Clinton County](https://ontology.bommaritollc.com/id/01a0ca47-5954-7486-8da7-cf1fa640c49a)
  - [Riley Township](https://ontology.bommaritollc.com/id/01a0ca47-7985-70d1-91ac-54d887189e6f)
- `skos:prefLabel`: Coffman Drain

## Elsewhere

- [Wikidata Q33181724](https://www.wikidata.org/wiki/Q33181724) (proposed match (exactMatch))
- [USGS GNIS 623540](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/623540) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.89892&mlon=-84.62137#map=14/42.89892/-84.62137) (42.89892, -84.62137)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.89892,-84.62137)
- [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/Q33181724 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-73b9-70fb-91f0-d5e84428052a)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb)
Cite as: Coffman Drain. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-b038-740f-8237-620a964e04fb
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.