# Alwardt Drain

Alwardt Drain is a stream in [Macomb Township](https://ontology.bommaritollc.com/id/01a0ca47-69ac-770f-8546-00e50c0e587e), [Macomb County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-202aea23905c), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (1.5 km long), in the [North Branch Clinton River (HUC10 0409000303)](https://ontology.bommaritollc.com/id/01a0de92-1edd-77aa-ba90-f57b56b4ff99) watershed; it flows into [Hammon Drain](https://ontology.bommaritollc.com/id/01a0ddfe-b745-7263-9df4-f3564cf58ecc).

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Macomb County](https://ontology.bommaritollc.com/id/01a0ca47-5a13-7757-80a2-202aea23905c) › [Macomb Township](https://ontology.bommaritollc.com/id/01a0ca47-69ac-770f-8546-00e50c0e587e)

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

Location: 42.69031, -82.92881 (box -82.93873, 42.69010, -82.92857, 42.69713; west, south, east, north)

- `adms:identifier`: [gnis 620040](https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79d6b5c4cf0c)
- `dcterms:type`: [stream](https://ontology.bommaritollc.com/vocab/geo/gnisStream)
- **flows into** (`bcgeo:flowsInto`): [Hammon Drain](https://ontology.bommaritollc.com/id/01a0ddfe-b745-7263-9df4-f3564cf58ecc)
- `geo:hasDefaultGeometry`: [shape of Alwardt Drain](https://ontology.bommaritollc.com/id/01a0de2c-c373-7432-a6e1-9be1ed7168d9)
- `geo:hasGeometry`:
  - [point of Alwardt Drain](https://ontology.bommaritollc.com/id/01a0ddfe-e198-7448-8762-61f600b13e1b)
  - [shape of Alwardt Drain](https://ontology.bommaritollc.com/id/01a0de2c-c373-7432-a6e1-9be1ed7168d9)
- `geo:hasMetricLength`: 1532.4 (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-a91a-7074-9ae1-79cc0bbd0a89)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-4441-7092-a64e-70d670a8606c)
  - [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)
  - [Macomb Township](https://ontology.bommaritollc.com/id/01a0ca47-69ac-770f-8546-00e50c0e587e)
- `skos:prefLabel`: Alwardt Drain

## Elsewhere

- [Wikidata Q34641952](https://www.wikidata.org/wiki/Q34641952) (proposed match (exactMatch))
- [USGS GNIS 620040](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/620040) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.69031&mlon=-82.92881#map=14/42.69031/-82.92881) (42.69031, -82.92881)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=42.69031,-82.92881)
- [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/Q34641952 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-734e-7271-a78d-ddce9c44c390)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05)
Cite as: Alwardt Drain. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-a91a-7074-9ae1-79cdd9499f05
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.