# Mahaffy Drain

Mahaffy Drain is a stream in [Bruce Township](https://ontology.bommaritollc.com/id/01a0ca47-6c5c-7713-a88b-a85d33f777ca), [Macomb County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-202aea23905c), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (5.7 km long), in the [North Branch Clinton River (HUC10 0409000303)](https://ontology.bommaritollc.com/id/01a0de92-1edd-77aa-ba90-f57b56b4ff99) watershed; it flows into [North Branch Clinton River](https://ontology.bommaritollc.com/id/01a0ddfe-c1b4-774d-9bd7-5f9dc834e89d).

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Macomb County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-202aea23905c) › [Bruce Township](https://ontology.bommaritollc.com/id/01a0ca47-6c5c-7713-a88b-a85d33f777ca)

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

Location: 42.82670, -82.98771 (box -83.03790, 42.82657, -82.98763, 42.85039; west, south, east, north)

- `adms:identifier`: [gnis 631328](https://ontology.bommaritollc.com/id/01a0ddfe-bdce-7261-91ca-73a5b5dcb36d)
- `dcterms:type`: [stream](https://ontology.bommaritollc.com/vocab/geo/gnisStream)
- **flows into** (`bcgeo:flowsInto`): [North Branch Clinton River](https://ontology.bommaritollc.com/id/01a0ddfe-c1b4-774d-9bd7-5f9dc834e89d)
- `geo:hasDefaultGeometry`: [shape of Mahaffy Drain](https://ontology.bommaritollc.com/id/01a0de2c-cf20-7540-bacc-88ab7f45209d)
- `geo:hasGeometry`:
  - [point of Mahaffy Drain](https://ontology.bommaritollc.com/id/01a0ddfe-f542-757b-937f-79a8988eb240)
  - [shape of Mahaffy Drain](https://ontology.bommaritollc.com/id/01a0de2c-cf20-7540-bacc-88ab7f45209d)
- `geo:hasMetricLength`: 5701.2 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [North Branch Clinton River (HUC10 0409000303)](https://ontology.bommaritollc.com/id/01a0de92-1edd-77aa-ba90-f57b56b4ff99)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-32384907d070)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5399-7202-860c-3aa6af998faa)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-18be-7315-9532-618e5c4275c1)
- `schema:containedInPlace`:
  - [Macomb County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-202aea23905c)
  - [Bruce Township](https://ontology.bommaritollc.com/id/01a0ca47-6c5c-7713-a88b-a85d33f777ca)
- `skos:prefLabel`: Mahaffy Drain

## Elsewhere

- [Wikidata Q35449482](https://www.wikidata.org/wiki/Q35449482) (proposed match (exactMatch))
- [USGS GNIS 631328](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/631328) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.82670&mlon=-82.98771#map=14/42.82670/-82.98771) (42.82670, -82.98771)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.82670,-82.98771)
- [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

- Flowing into it (1; `bcgeo:flowsInto`):
  - [Wilson Drain](https://ontology.bommaritollc.com/id/01a0ddfe-cf60-71a7-a7c3-17eac551027d)
- Mappings (1; `owl:annotatedSource`):
  - [exactMatch http://www.wikidata.org/entity/Q35449482 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-75f8-775d-9df1-f66685dcf49e)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9)
Cite as: Mahaffy Drain. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-bdcd-76ba-b94b-323958f2acf9
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.